DE1085102B - Hydraulic drive device for one- or two-part, movable water locks, especially weir locks - Google Patents

Description

GERMAN

The invention relates to hydraulic drive devices for one- or two-part, movable Water closures, in particular weir closures, in which straight cylinder-piston units used to move the load. So far there are both one-piece water closures hydraulic drive devices become known in which the cylinder on the water seal body and the piston rod on the structure supporting the drive device - e.g. B. the ic Weir pillar - is attached, as well as those in which - vice versa - the piston rod on the water seal body, the cylinder is fixed to the supporting structure.

In these known drive ^{devices, the disadvantage of 1} S is that the path of movement of the load, e.g. B. the stroke of a Hub-Senktores, is not greater than the possible piston stroke within the associated cylinder. Longer movement paths of the load accordingly always require not only long piston rods, but also long cylinders for the hydraulic drives, the manufacture of which is very expensive and therefore mostly uneconomical. Hydraulic drives of the conventional design have the disadvantage of medium and large lifting heights that they require high pillar structures, which are usually undesirable for reasons of landscape protection.

For double contactors or contactors with an attachment flap, the hydraulic drives known so far are at which a cylinder-piston unit is arranged on the weir pillar, unsuitable. That's why you have In the case of a double contactor, the cylinder-piston unit is arranged on the movable water seal itself, in such a way that the cylinder is mounted on the support and the piston rod on the Oberschütz attacks. However, this arrangement has the disadvantage that to raise the support Oberschütz in the defense niche must be locked and the lifting of both contactor parts above the water level and the lowering into the stowage position can only take place in stages.

To the disadvantages of the known hydraulic drive devices to avoid, the present invention brings a solution in which the drive device consists of two straight cylinder-piston units, one of which is the cylinder Unit attached to the movable water seal and the cylinder of the other unit to the fixed structure is mounted, while both pistons are connected to each other by a common piston rod are connected and the pressure medium, e.g. B. cylinder oil, the facing pressure chambers of the cylinders is fed. With this arrangement, the stroke of the water seal corresponds to the sum of the hydraulic stroke Drive device for single

or two-part, movable water seals, in particular weir seals

Applicant:

Rheinstahl Union bridge construction

Corporation,
Dortmund, Sunderweg 86

paths of both pistons in the associated cylinders. As a result of the division of the water seal stroke path on two cylinder-piston units, each of the two cylinders is only slightly longer than half Stroke of the water seal, there are only relatively low pillar structures. aside from that lets the hydraulic drive device according to the invention all movements of the one-part or two-part Water seal, as they are possible with the usual wheel drives.

The drive device according to the invention has, of course, in addition to cylinders and pistons necessary pumps for the pressure fluid, which is preferably oil, fluid containers, control devices and the like, which are known per se and are not the subject of the invention, so that this does not apply will be discussed in more detail. The supply of the pressure fluid into the cylinder can be carried out in the usual way by means of Pipelines or hoses happen. These pipes or hoses are, however, as far as they are lead to the cylinder arranged on the movable closure body, very easily exposed to damage.

According to the invention, the pressure chamber of a cylinder is therefore connected to the supply line for the pressure medium and the common piston rod of the two units with a longitudinal bore and into the pressure chambers Both cylinders are provided with cross bores through which the pressure chambers of both cylinders are connected to one another stay in contact. (If necessary, leading through the piston when making the longitudinal bore Openings must be closed again, e.g. B. by stopper.) Is for example in this Execution, when the lock is in the stowed position, the upper cylinder below the piston pressure

009 549/161

if the liquid is supplied, it also flows through the piston rod to the lower cylinder and presses simultaneously on both piston surfaces facing the piston rod. The contactor now rises like this long as the flow of hydraulic fluid continues, or until the possible stroke paths of both cylinder-piston units are driven through.

If the surfaces acted upon by the hydraulic fluid, i.e. practically the diameters of both cylinders, made the same size, it is uncertain in which of the two units the lifting process is initiated first will. In order to achieve a certain sequence of piston strokes, it is therefore advantageous to use the to make piston surfaces acted upon by the liquid pressure of different sizes. With one-piece Water seals are used with the large diameter piston, preferably with the movable one Water seal arranged cylinder - assign piston unit, so that in this case when Lifting the lock first pushes the cylinder arranged on it over the piston rod and this protects against splash water and other influences. Only when the stroke of this unit has ended is, the stroke of the unit arranged on the fixed structure starts automatically because the fluid pressure is now can only move the piston located in this cylinder. When lowering the breech the movements follow one another in reverse order.

The present invention can also be used for two-part water closures without much additional effort where the upper contactor part is raised to the highest position from the lower contactor part is taken, e.g. B. for double shooters or shooters with an attachment flap. With two-part water closures If the piston of large diameter is preferably arranged on the fixed structure Cylinder assigned, so that when pressure fluid is supplied, the upper closure part is first - e.g. B. the top flap - and then the lower closure part moves.

According to the invention, the piston rod is for this purpose over the piston of the fixed structure arranged (upper) unit and extended through its cylinder cover. That The upper end of this piston rod engages on one arm of a two-armed rod by means of a joint or tilting bearing Lever, on whose other arm a chain, rope or rod to move the upper part the water seal, e.g. B. the upper contactor of a double contactor or the one mounted on a contactor Storage flap, is attached. As soon as the common piston rod is on a lifts the two pistons, the two-armed lever executes a corresponding pivoting movement and causes it thereby lowering the attached top hatch or the upper contactor of a double contactor. With the reverse operation, when the piston rod lowers, the top flap resp. the upper contactor lifted into stowage position. For the mode of operation of the arrangement, it does not matter whether the two-armed levers on the drive device itself or by means of special devices in the machine room is rotatably mounted.

In another embodiment of the invention, at the upper end of the through the lid of the Upper cylinder carried through piston rod a pulley rotatably arranged over which a pliable Lifting means is performed, for. B. a chain or rope on which the upper contactor of the double contactor resp. the free end of an attachment flap is suspended. The flexible lifting means can either be endless or one end engages the top contactor of the double contactor or the free end the top flap, and the other end is held on the drive frame or the fixed structure. As in the case of the arrangement with a two-armed lever, this arrangement also has the effect Raising the piston rod, lowering the upper contactor or the flap; lowering the The piston rod lifts the upper contactor or the flap.

Of course, it is irrelevant for the invention whether to move the water seal body only a drive device according to the invention is used or, on the length of the closure body distributed, several of the same. It is also without influence on the invention whether the common piston rod made from one solid piece and later provided with a longitudinal bore or whether from the start a tube is chosen as the piston rod.

Some exemplary embodiments of the invention are shown in the drawing.

Fig. 1 and 2 show in vertical section through a weir the application of the invention to a one-piece weir lock which is in the stowed position in FIG. 1 and in the highest position in FIG. 2;

3 shows an application example for a contactor with an attachment flap;

Fig. 4 shows the invention with a double contactor in the raised position, in which the The upper contactor is lifted from the lower contactor;

5 and 6 show two further possibilities for the cable or chain guide for moving an attachment flap or an upper contactor.

For the sake of clarity of the drawing, the cylinders of the cylinder-piston units are shown in the figures in section and the outlines of the closure body in stowed position by long torn lines and in raised Position shown by short dashed lines. In Figs. 5 and 6, only the upper ones are shown Piston rod ends with the pulleys located on them and the cable or chain guide over further pulleys drawn. The remaining parts of the drive device are omitted. In all Figures of the drawing are the usual and known liquid pumps and others for the hydraulic drive required fittings and control devices not shown, they are not Subject of the invention.

In Fig. 1, designed as a roller gate movable weir closure body 1 is in the stowed position. With him The cylinder 2 of a cylinder-piston unit containing the piston 3 and the piston rod 4 is firmly connected. The piston rod 4 is also part of the on the weir pillar 5 on support 6 on a Drive frame 7 with the help of bearings 8 arranged second cylinder-piston unit, which in the consists essentially of the piston rod 4, the piston 9 and the cylinder 10. The bearings 8 of the Cylinder-piston unit will be trained in many cases, for. B. gimbal that they move allow the cylinder 10 to the sides so that the piston rod 4 remains free from bending stresses. The piston rod 4 is provided with a longitudinal bore 11, which is through transverse bores 12 and 13 below the pistons 3 and 9 open into the cylinder interiors. The cylinder diameter 14 of the lower Cylinder 2 is larger than the cylinder diameter 15 of the upper cylinder 10. As a result, at

Supply of pressure fluid through the line 15, which through the bores 11, 12 and 13 of the piston rod 4 is passed into the lower cylinder 2 and now facing the piston rod The lower cylinder 2 presses the undersides of the pistons 3 and 9 via the pressure fluid on the piston 3 hanging, lift and thereby take the weir bolt body 1 connected to it with you. With ongoing Inflow of the pressure fluid, this stroke movement will continue until the cylinder 2 is the possible Piston travel 17 has passed. Then it rises without the lifting process being interrupted, the piston 9 in the cylinder 10, since the volume of the cylinder 2 is filled and only in the cylinder

10 a piston movement is possible. The piston 9 travels through the possible piston path 18; about that Measure is raised on the common piston rod 4 of the movable weir bolt body 1, until it passes through the total lift height 19 visible in FIG. 2 and achieves the highest position shown here has enough. The total lift height 19 is equal to the sum of the piston lifts 17 and 18. Ventilation valves 20 and 21 on the lifting cylinders 2 and 10 are designed in the usual way; possibly must Valve 20 received a pipeline (not shown) up to above the upper water level 38.

If the invention is applied to a Tiefschütz (pressure tunnel lock), so can to the required To generate closing pressure on the sole 22, on the cylinders 2 and 10 at the valves 20 and 21 Pipelines or flexible hoses not shown can be connected through the cylinders the top of the piston 3 and 9 pressure fluid can be supplied, whereby the movable closure body 1 is pressed against the sole 22.

In the example of FIG. 3, the movable closure body 1 carries an attachment flap 24 which can be pivoted about a hinge 23. The piston rod 4 is extended beyond the upper piston 9 α and through the cover 25 of the cylinder 10 by means of section 4 a and contains , as in the example of FIG. 1, a longitudinal bore between the two pistons 3 and 9 α

11 α with side holes 12 and 13. At the upper end of the Kolbenstangenverlängerung4 is rotatably supported a roller 26, which on the curved excluded ⁴ S formed shorter lever arm 27 of a two-armed lever 27, 28 rests under pressure. The two-armed lever 27, 28 is mounted on the drive frame 7 by means of a joint 29 via a bracket structure 30; at the end of the longer lever arm 28, a tension member 32 is attached by means of hinge 31, for. B. a chain or a rope, at the other end by means of a joint 33, the top flap 24 is suspended. As a result of the leverage of the two-armed lever 27, 28, a small path 34 of the roller 26 is sufficient to lower the flap. A corresponding clearance 35 in the cylinders allows flaps movements without the weir closure body 1 is moved in the to the piston rod 4 facing lower surfaces of the piston 3 c and 9 a pressure fluid supplied through the line 16 because the diameter 15 a of the upper piston 9 α is greater than the diameter 14 a of the lower piston 3 α. If, after lowering the flap 24, whereby the play 35 in the cylinder 2 is used up, the upper cylinder 10 is further supplied with pressure fluid through the line 16, the piston 9α- rises because its surface is larger than that of the piston 3a , and takes the closure body 1 via the piston rod 4 c and the cylinder 2 and the flap 24 via the joint 23. When the piston path 18 in the upper cylinder 10 has been traversed, the pressure of the hydraulic fluid can only be converted into motion in the lower cylinder 2 by pushing it over the piston 3 α and thus the closure body 1 and flap 24 by the amount 17 raises. The sum of the partial strokes 17 and 18 results in the possible total stroke 19 of the weir lock, when the roller 26 is released from the lever arm 27 when it is passed through and the lever arm 28 covers the path 36. When the closure body 1 and thus the flap 24 are raised to the highest position, the traction means 32, if it is designed as a chain or rope, forms a loop (not shown). If the traction means is designed as a linkage, it is provided with a longitudinal slot in which the joint 33 of the flap 24 can slide when the closure body 1 moves upwards with the flap 24 lowered.

A lock arranged on the drive frame 7 37, which can be brought into engagement with the pulling means 32, enables the closure body 1 to be lifted with the top flap 24 upright to rinse the sole 22, while the overflow edge remains 39 of the top flap 24 are in their altitude.

The same effect is achieved if the lock 37 is dispensed with when the cylinder 10 has both through the line 16 as well as through the valve 21 under the same pressure hydraulic fluid is supplied will. The piston rod 4 then remains in its position because on both sides of the piston 9 ″. the same pressure rests. Since the hydraulic fluid through the bores 11, 12 and 13 of the piston rod 4 also is fed to the lower cylinder 2, the weir closure body 1 begins to lift, in which the Cylinder 2 pushes upwards over piston 3 ο, whereby the top flap 24 pivots about the bearing 23 without the position of the overflow edge 39 opposite the upper water level 38 is changed.

To lower the closure body 1 or to raise the top flap 24, the movements take place in the reverse order of the operations described by draining the hydraulic fluid accordingly.

In the example of FIG. 4, the operations take place with movements of the lower contactor 1 α and the upper contactor 24c analogous to those as in the example of FIG. 3 for a movable water seal body are described with an attachment flap. The upper contactor 24 c is through the lower contactor 1 α in the illustrated highest position by support 23 c on the lower contactor Ic, on which the upper contactor 24α can rest, taken along, since a connecting joint 23, as it has the closure body 1 and top flap 24, does not exist. In this embodiment, the traction means 32 is designed as a chain that over a deflection roller 40 which is rotatably mounted on the bracket 30 of the drive frame 7 by means of a joint 29 is guided to the upper end of the piston rod extension 4 c and attached here to the joint 26 c is. Of course, this double contactor arrangement can also be used to move the upper contactor a lever arrangement can be used as shown in FIG. 3 for the flap movements.

In FIG. 5, a rope is selected as the traction means 32, one end of which has a joint 33 on an attachment flap 24 and its other end by means of bolts 41 on a ceiling support 42 of the not shown Control room is solid. The rope is over a fixed pulley 43, which is attached to the not shown Drive frame is mounted, and a wide

tere pulley 26a at the top of the piston rod extension 4 α led.

In the embodiment of FIG. 6, the traction means 32 is designed to be endless. So the same Modes of operation as in the examples of FIGS. 3 to 5 are possible, is also possible with this arrangement on the arranged at the upper end of the piston rod extension 4 α a deflection roller 26 β. In addition, the traction means 32 via a deflecting roller 44 on the top flap 24 and via further deflecting rollers 43 α ge ι ° leads.

Claims (5)

Patent claims: 1. Hydraulic drive for one or two-part, movable water closures, in particular weir closures, characterized in that the drive consists of two straight cylinder-piston units (2, 3; 9, 10), of which the cylinder (2) of the one Unit (2, 3) attached to the ao movable water seal (1,1 α), the cylinder (10) of the other unit is mounted on the fixed structure, both pistons (3, 9) connected to one another by a common piston rod (4) are and the facing pressure chambers of the cylinder, the pressure medium is supplied. 2. Hydraulic drive according to claim 1, characterized in that the pressure chamber is one Cylinder (z. B. 10) is connected to the supply line (16) of the pressure medium and the pressure chambers both cylinders (2,10) through transverse bores (12,13) arranged in the piston rod (4) and one these interconnecting longitudinal bore (11) are in communication with one another. 3. Hydraulic drive device according to claim 1 or 2, characterized in that the Diameters of the pistons (3, 9) are of different sizes and the piston of large diameter in the case of one-piece Water closures preferably the one on the water lock and with two-part water closures is assigned to the cylinder arranged on the fixed structure. 4. Hydraulic drive device for driving a two-part water seal according to one of claims 1 to 3, characterized in that the piston rod (4) over the piston (9 a) of the (upper) unit (9a, 10) arranged on the fixed structure out and through whose upper cylinder cover (25) is extended therethrough and that the upper end of the piston rod extension (4 α) on one arm (27) of a two-armed lever (27, 28) engages whose other arm (28) has a tension member (32), e.g. B. chain or linkage to move the on a movable weir lock (1) mounted flap (24) or the upper contactor (24 ») of a Double contactor (la, 24 a) is attached. 5. Hydraulic drive device for driving a two-part water seal according to one of claims 1 to 3, characterized in that the piston rod (4) via the piston (9 a) of the (upper) unit (9 a, 10) arranged on the fixed structure addition and through the upper cylinder cover (25) is extended and that at the upper end of the piston rod extension (4 α) a pulley (26 a) is arranged over which a tension member (32), for. B. a chain or a rope, on which the free end of a on a movable water seal (1) mounted flap (24) or the upper contactor (24 a) of a double contactor (la, 24a) is suspended. Considered publications:
German patent specification No. 950120. 1 sheet of drawings 009 549/161 6.