DE10203008B4 - Pressure accumulator bladder for gaseous or liquid media - Google Patents

Abstract

Pressure accumulator bladder for gaseous or liquid pressure media as part of machines, devices or their parts, with closure and fastening means (3; 4) arranged at one end (3a; 4a) and with a pressure medium supply (6) and / or a check valve ( 7), which form a base group (1) of first and second pressure plates (3, 4) on both sides for connection, characterized in that the base assembly (1) comprises a film tube (2) attached to the first end (3a) of the first Pressure plate (3) and approximately diagonally opposite at the second end (4a) of the second pressure plate (4) is tightly clamped and fastened in such a way that each section lies flat against the respective pressure plate (3; 4) and the film tube walls are statically similar to a parallelogram , wherein the pressure plates (3, 4) assume a parallel position both in the unpressurized and in the pressurized state.

Description

The invention relates to a pressure accumulator bladder for gaseous or liquid pressure media, as part of machines, devices or parts thereof, having at one end arranged closing and fastening means and with a pressure medium supply and / or a check valve, the base group of both sides first and second Form pressure plates to the connection.

An accumulator bladder in the broadest sense has its training in a bellows according to the GB 1 193 264 A found. Although the fan-shaped pockets are not suitable for connection to machines or devices or their parts, but are used as a connection connection first and second pressure plates as Verschließ- and fastening means and a pressure medium supply and a check valve are present.

From the DE 40 40 295 A1 is a pressure medium actuated lifting and / or clamping device is known, which has an inflatable, stabilized, gas-tight, flexible, intended to carry out a lifting movement, provided with at least one pressure medium connection container, which is held between two in the rest state parallel to each other arranged pressure plates. However, the stroke of this device is limited to a limit of the container.

An accumulator is also from the DE 199 52 490 C1 known. For this purpose, the production of such pressure accumulator bladder for particularly resistant embodiments is described, due to which the number and length of welding or vulcanizing seams are reduced to a minimum and due to which a mechanically and thermally temporally more stable accumulator bladder can be produced. This embodiment has proven itself in practice.

In contrast, the invention is directed to handling or assembly and use characteristics. It is therefore the object of the invention to provide a design that ensures a defined position of the connecting parts, so that z. B. the connecting parts perform a parallel stroke as soon as the gaseous or liquid pressure medium is introduced.

This object is achieved in that the base assembly comprises a film tube which is so tightly clamped and fixed at the first end of the first pressure plate and approximately diagonally opposite to the second end of the second pressure plate, that in each case a portion abuts against the respective pressure plate flat and the film tube walls are statically similar to a parallelogram, wherein the pressure plates occupy a parallel position both in the pressureless and in the pressurized state. As a result, an adaptable position to be moved to the machine or device is created both in the pressureless and in the pressurized state and reaches the connection position of a pressure plate as a connection part for the aforementioned machines and devices. Another significant advantage results from the floating support of the upper pressure plate (loose side), which adapts to the respective machine or device articulated. A particular advantage consists in the selectable opening width (stroke) by changing the length of both ends differently clamped film tube.

In the event that paths or clearances between the accumulator bladder and the machine / device must be completed, it is further provided that on at least one of the printing plates a the length and / or width of the pressure plate engaging spacer is arranged.

The Hubweglänge and the distance of the machines or devices used can be increased, that two base assemblies are arranged mirror-inverted and with their pressure plates adjacent.

In this case, a simplification and a reduced effort can be achieved in that the two mirror-image base assemblies have a common, centrally disposed pressure plate.

The principle of extended Hubweglänge can also be designed to the effect that two base assemblies, each with common, central pressure plate by means of a arranged in the plane of symmetry pressure plate at one end are tightly connected and arranged in mirror image to each other. As a result, an even longer Hubweglänge is achieved.

In this embodiment, a simplification and a reduction of the effort can also be achieved by the mirror images of each other, provided with a central, symmetrical pressure plate two base assemblies are respectively sealed to the own, central pressure plate and the print media feeds each on a common end wear.

As the stroke length increases, stabilization of the stack of multiple base assemblies may be advantageous. It is envisaged that with two combined basic assemblies on both sides next to the film hoses Guide columns provided and attached to the printing plates.

For the transport, handling and protection of the accumulator bladder, it is further advantageous that one or more base assemblies are arranged within a box-shaped housing, wherein each of the outer pressure plates form a housing bottom and a housing cover.

According to another feature, the housing can also be closed on all sides.

A further improvement of the accumulator bladder is that with three base assemblies in the housing, the middle base assembly is disposed between two pressure plates with a compressed air cushion.

It is provided that the two pressure plates for the compressed air cushion are each part of one or the other base assembly.

The application or use of such pressure accumulator bladders in machinery or apparatus can also be made such that the formed central base assembly at the ends of elongate pressure plates mounting holes or fasteners for coupling to tools u. Like. Has.

Depending on the given machines or devices, the arrangement of the basic modules has to be adapted. Such an adaptation can z. Example, be made in that two opposing base assemblies are provided in the housing between which each facing pressure plates, a second spacer or a buffer member is inserted and that the respective extended end of the pressure plates is used for tool holder.

This arrangement may, for. B. are used so that rollers for straightening wires, strands or films are provided at the extended ends of the pressure plates for the middle compressed air cushion.

Depending on the given space and space conditions inside or outside of the machines or devices, an adaptation of the outer shape of the pressure accumulation bubble must be made in the present case to further characteristics to the effect that two basic assemblies mirror images next to each other with at least one common pressure plate as the housing bottom and a common print media supply are provided.

In cases where the pressure accumulator bladder has to adapt to the movements of a machine or a device, it is advantageous according to other features that the two base assemblies are arranged as a unit on a traveling frame. In this case, an elongated expansion of the accumulator bladder can be taken into account such that the continuous housing bottom is supported on a plurality of running gears.

In general, a coupling of the pressure accumulator bladder to machines or devices or a guide can be provided in that the first pressure plate and the second pressure plate are extended beyond the length of the clamping plate.

Advantages for the arrangement, classification and adaptation of the accumulator bladder generally result from the fact that a first spacer is formed with a rectangular or square cross-section.

In this case, the shape can be considered for the z. B. the first spacer is provided with a rounded cross-sectional boundary.

According to further features, the stability of the base assembly can be achieved by providing the pressure plates respectively at their ends with at least one clamping plate and a pair of clamping plates which seal the foil tube.

It is further advantageous that a clamping plate which is provided at one end of the pressure plates, is arranged in the middle of the compressed air cushion.

The corresponding sealing and / or clamping forces can be achieved in such a way that the centrally arranged clamping plate is thicker and / or longer than the paired clamping plates. Instead of the plate shape of the clamping plates, other profiles can be used.

In the drawings, embodiments of the invention are shown, which are explained in more detail below.

Show it:

1 a longitudinal section through an accumulator bladder with two clamping plates in the pressurized state,

1A the associated side view in the direction "A",

1B the longitudinal section of 1 in the unpressurized state,

1C a side view of a base assembly with widened clamping plates,

1D a partial section through the print media supply on an enlarged scale,

2 a longitudinal section of a base assembly with spacers,

2A a side view too 2 with view "B",

2 B the same side view with adapted spacers,

3 a longitudinal section through a 2-fold base assembly,

4 a longitudinal section through a 2-fold base assembly with common central clamping plate,

4A a vertical section through an application of the in 4 shown article as a gripper,

5 a longitudinal section through a 4-fold arrangement of the base assembly,

5A a cut AB off 5 .

5B the print media feed as a detail on an enlarged scale,

6 a longitudinal section through the 4-fold arrangement of 5 with guide columns,

6A a cut CD according to 6 .

7 a longitudinal section with 2-fold base assembly and central compressed air cushion,

7A a cut AB off 7 .

7B the print media feed as a detail on an enlarged scale,

8th a longitudinal section through an alternative Ausführungsfom with 2-fold base assembly and central spacer between the clamping plates,

8A a cut CD according to 8th .

9 a longitudinal section through the embodiment according to 7 with roles,

9A a view in the direction of "E",

10 a longitudinal section through an alternative embodiment with adjacent base assemblies and common print media supply and

11 a longitudinal section through the embodiment of the 10 with a moving device.

12 a longitudinal section through a brake device for a lathe chuck,

13 the too 12 belonging side view,

14 a longitudinal section through the application of the base assembly on a machine vise and

15 a longitudinal section through the base assembly with another tool attachment opposite 14 ,

The accumulator bladder is used as part of machinery, devices or parts thereof for clamping, evaluating, braking, damping, threading, springs, gripping lifting, clamping, positioning, pressing, spreading, compacting, deforming or closing one or more parts.

According to 1 is a basic module 1 educated. This consists of a fabric-reinforced film tube 2 for pressures of z. B. 6 bar and more and from printing plates 3 and 4 , The film tube 2 is in each case by means of clamping plates 5 sealed and fastened. It is at one end 3a and an obliquely opposite, approximately diagonal end 4a the film tube 2 clamped, so that each of them on a section against the respective pressure plate 3 or 4 Can create brook. This creates a structure that is statically similar to a parallelogram and can not tip over. The distance between the printing plates 3 and 4 corresponds to the stroke, which depends on the machine or device. in the side view of 1A is except the printing plates 3 . 4 , the film tube 2 and the clamping plate 5 the print media feed 6 Visible through a check valve 7 replaced or supplemented.

In 1B is the basic module 1 shown without pressure medium, so that the film tube 2 together with the printing plates 3 and 4 forms a flat building unit.

In 1C can the basic assembly 1 with widened printing plates 3 and 4 be equipped to form corresponding connection parts for said machines or devices. The print media feeder 6 is in each case matching the relevant machine or device on one end 3a or 4a arranged. In 1D is the print media feeder 6 shown in section, wherein the feed channel between the walls of the film tube 2 runs.

In 2 is a basic module 1 with the film tube 2 , the printing plates 3 and 4 , the clamping plates 5 , the print media feeder 6 , a check valve 7 , shown on both printing plates 3 . 4 a first spacer 8th has, which fills a gap to a machine or a device or acts as a damping means with appropriate choice of material.

In 2A is the first spacer 8th in cross section 8a executed with square (or rectangular) shape. In 2 B has the first spacer 8th a rounded cross-section boundary 8b on.

3 provides a 2-fold base assembly 1 dar. The two basic modules 1 lie one above the other, so that the printing plates 3 . 4 to the outside form the boundary and other printing plates 3 . 4 lie on the axis of symmetry together. Here is every basic assembly 1 regardless of the other via the print media feed 6 (with check valve 7 ) acted upon.

The embodiment according to 4 corresponds to that of 3 but only a printing plate 3 between the two basic modules 1 intended. The embodiment of the 4 is in 4A shown as a gripper for a workpiece to be gripped inside.

According to 5 can the hub by means of 4-fold basic modules 1 be made four times larger. It is between each two 2-gang base modules 1 a central pressure plate 4 in the symmetry plane 9 intended. The hub can be powered by applying one, two or more base assemblies 1 set, ie increased or decreased. The series of four foil tubes 2 is in 5 visible on average. The print medium can be individually via print media feeds 6 (with check valves 7 ) ( 5B ).

To displacements in several series-assembled basic modules 1 to avoid is the construction according to 6 with guide columns 10 fitted. When collapsing or swelling the individual film tubes 2 can the printing plates 3 . 4 on the guiding column 10 but are transversely led to it. On average CD according to 6A are management columns 10 on both sides of the foil tubes 2 arranged.

In 7 is an embodiment with a box-shaped housing 11 shown.

The housing takes over 11 with a caseback 11a and a housing cover 11b each the task of an upper pressure plate 4 and a lower pressure plate 3 , Between two foil tubes 2 is between the limiting medium pressure plates 3 . 4 a compressed air cushion 12 arranged. These middle pressure plates 3 . 4 are on one side outward with extension tongues 13 , the fixing holes 13a have executed. The foil tubes 2 and the compressed air cushion 12 are according to 7A in the case 11 sheltered.

8th shows one with 7 comparable embodiment, wherein instead of the compressed air cushion 12 a second spacer 14 at the end of the printing plates 3 . 4 opposite to the tool holder 13b is used. This will make the tool holder 13b adapted to the distance required for the respective tool. The 8A (Section CD) shows the central position of the second spacer 14 in the case 11 between the printing plates 3 . 4 ,

9 shows the embodiment according to 7 with roles 15 for straightening wires, strands and foils. In 9A are the roles 15 visible in the direction of "E".

10 shows two side by side base assemblies 1 , wherein the lower pressure plate 4 a continuous, common base plate forms and the film tubes 2 by means of a common print media supply 6 be charged.

One or more basic assemblies 1 can also be made portable for selected applications. The embodiment according to 10 is in 11 with the continuous pressure plate 4 on a driving frame 16 stored, based on several spaced chassis 17 supports itself.

In 12 is the basic module 1 using the first spacer 8th with a brake pad 18 provided in the drawn position in the activated state, a lathe chuck 19 decelerating. The basic module 1 is executed as described and according to 13 is the brake pad 18 on the first printing plate 3 applied and the film tube 2 is as described by means of the clamping plates 5 , a joint at the ends 3a respectively. 4a forming on the second printing plate 4 tightly fastened. Into the print media feeder 6 is compressed air introduced.

In 14 is as a further embodiment or as a further application, the base assembly 1 between vise jaws 20a and 20b arranged, with workpieces 21 (with circular cross-section) in a receptacle 22 are inserted.

When loading the basic modules 1 by means of compressed air through the print media supply 6 become the workpieces 21 in the recording 22 against the vise jaws 20a pressed.

In 15 is the recording 22 alternatively with angle recesses 23 educated.

LIST OF REFERENCE NUMBERS

1

basic module

2

film tube

3

first printing plate

3a

first end

4

second pressure plate

4a

second end

5

clamp

6

Print media supply

7

check valve

8th

first spacer

8a

cross-section

8b

rounded cross-section boundary

9

Plane of symmetry

10

guide columns

11

box-shaped housing

11a

caseback

11b

housing cover

12

Druckluftkissen

13

Extension tongues

13a

mounting holes

13b

tool holder

14

second spacer

15

relief

16

trial frame

17

landing gear

18

brake lining

19

Lathe chuck

20a

vice jaws

20b

vice jaws

21

workpiece

22

admission

23

angle bowl

Claims (3)

Pressure accumulator bladder for gaseous or liquid media as part of machines, devices or parts therefor, having at one end ( 3a ; 4a ) arranged closing and fastening means ( 3 ; 4 ) and with a print medium supply ( 6 ) and / or a check valve ( 7 ), which is a basic group ( 1 ) from both sides first and second printing plates ( 3 . 4 ) form the connection, characterized in that the base assembly ( 1 ) a film tube ( 2 ), which at the first end ( 3a ) of the first printing plate ( 3 ) and approximately diagonally opposite each other at the second end ( 4a ) of the second pressure plate ( 4 ) is clamped and fastened so tightly, that in each case a section against the respective pressure plate ( 3 ; 4 ) flat and the film tube walls are statically similar to a parallelogram, the pressure plates ( 3 . 4 ) occupy a parallel position both in the unpressurized and in the pressurized state. Pressure accumulator bladder according to claim 1, characterized in that on at least one of the pressure plates ( 3 ; 4 ) a the length and / or width of the pressure plate ( 3 ; 4 ) engaging spacer ( 8th ) is arranged. Pressure accumulator bladder according to one of claims 1 and 2, characterized in that two basic assemblies ( 1 ) in mirror image and with their printing plates ( 3 ; 4 ) are arranged adjacent to each other.

Images