DE1634043A1 - Hydraulic sliding gate operator - Google Patents

Description

"Hydraulic sliding gate drive"

Sliding gates that are in the closed position are often used as closures for hydraulic structures, tunnels and the like by means of a seal made of rubber or the like arranged on the gate or on the masonry. ensure a tight seal.

Such sliding gates can be driven mechanically or hydraulically or by a combination of both types of drive. the Hydraulic drives with horizontal cylinders that have become known to date have a very limited area of application, since the Limitation of the deflection and the risk of the cylinder and piston rod buckling if the route is over 5 m in length and is too unusable Oversizing leads.

The invention is based on the object of a robust, space-saving and without a superstructure, a hydraulic drive that can also be flooded by water without damage, for larger ones Developing routes and using it as a means of transmission at the same time for the oil supply to the cylinders of filling, To make flushing and emptying gates usable

According to the invention this is achieved in that a lying Driving cylinder is equipped with two pistons rotating in opposite directions and hollow piston rods, which at their outer end the

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SAD

0 (T98 1 97 1 1 1 5

f icuo documents (Art 7 J1 Para. 2 No. 1 Sentence 3 de · Amendment * ··, of 4.9.19671

44

Form points of application of the driving force on the gate and the fixed point, wherein the driving cylinder is horizontally displaceable on one or more roller carriages in or outside the track of the sliding gate is performed, and that the oil supply and oil drainage by a special hydraulic circuit from the stationary oil unit of the gate through the hollow-drilled piston rods and, if necessary, through the driving cylinder to the connections the contactor cylinder built into the gate is routed.

Compared to known proposals, the advantages consist essentially in that the risk of kinking is eliminated by shortening the two piston rods to half the length of the cylinder and that there is no need for hose lines to guide the oil to the contactor cylinders in the sliding gate.

In the drawing is an embodiment of a hydraulic Sliding gate drive according to the invention shown in three figures. Show it:

Fig. 1 an elevation of the driving cylinder in an intermediate position,

Fig. 2 the floor plan with the sliding door open, Fig. 3 den. Floor plan with the door closed.

The driving cylinder common to the two pistons 2, 2a is denoted by 1, 1a, 1b. The piston rod 3 is attached to the fixed point 5 and the piston rod 3a to the gate attack point k. 6 is the roller conveyor of the sliding gate, 7 is the sliding gate rollers, 8 is the roller carriages of the sliding cylinder, 9 is an oil circulation pipe, 10 and 10a are each an oil guide pipe in the hollow piston rod. 11 and 11a are oil guide slots in the piston rod wall behind the piston in connection with the annular spaces A ₁ and A ₂ . 12 are the contactor cylinders in the sliding gate 13; 14 is the stationary oil pressure generation system

SAD ORIGINAL

009818/1115

A / t

In the open position, the sliding gate 13 is in the gate chamber. During the closing movement, by means of a corresponding hydraulic circuit, oil is conveyed from the stationary oil pressure generating system Ik via the fixed point connection 5 through the oil guide tube 10 between the piston surfaces into the central cylinder space M. That. The door is set in motion by the oil pressure on the piston, the cylinder la in the direction of the door attack point k describes half the door path to position Ib, so that its roller carriages 8 do not come into collision with the door rollers 7. The oil flowing off behind the piston passes through the oil circulation pipe 9 and the oil slots 11 into the piston rod annular space 10b and from there into the drainage line at the piston rod end of the fixed point 5 back to the oil pressure generation system 14.

In the arrangement of contactors with contactor cylinders 12, the piston rod 3a is hollow and drilled with a ÖlfUhrungsrohr 1oa ₁ an annular chamber 10c, and slits 11a provided.

When the door is opened, the pressure oil from the oil pressure generation system 1 * 1 is fed through the fixed point connection 5 via the piston rod annulus 10b introduced. The oil flows through the slots 11, the oil circulation pipe 9, behind the pistons 2, 2a. The oil pressure moves the pistons to one another, with the sliding door 13 and the driving cylinder Ib also extending horizontally from the center of the door track moved back to fixed point 5. The draining oil is passed through the oil guide tube 10 to the fixed point drain 5 and from there completely back to the oil pressure generation system

The protective cylinders 12 in the sliding gate 13 are directly connected to oil lines L, L ₂ from the driving cylinder 1 via the gate attack point k and are supplied by the stationary oil pressure generation system Ik.

BAD ORIGINAL 19/1115

Hydraulic circuits are possible through which the pressure oil is applied to the sliding cylinders in the direction of opening if the driving cylinder is acted upon either in the same sense or in the sense of the closing movement of the gate "

In both cases, the piston surfaces of the driving cylinder and the shooter are in a certain position, taking into account the resistances Relationship to one another, e.g. so that the gates are moved by a lower oil pressure than the travel cylinder, and the movement of the gate can only start after the pressure has increased, with the contactor cylinder in the open position stay. In addition, interlocks are possible that the contactors can only move in certain sliding gate positions release.

For example, when the sliding gate is closed, the water has built up on one side of the gate, so that the water level there is higher than on the other side and the one-sided excess water pressure the sliding gate with its seals against his Pressing the sealing stops, the accumulated water level should be lowered and the gate should be even or almost balanced can be opened when the water level is balanced.

In this case, after switching on the oil pressure generating system 14 both driving cylinder 1 and contactor cylinder 12 in the The same pressure is applied to the opening sense. The contactor cylinder However, in relation to the contactor resistances, they have larger piston areas than the travel cylinder for the sliding gate travel resistor. Therefore, the contactor cylinders open first so that the higher standing water flows off through the contactor openings, until the driving resistance of the gate is less than the force in the driving cylinder, which then opens the sliding gate, whereby the contactor cylinders remain in the open position.

BAD ORSQiNAL

009819/1115

In the arrangement of known locks can
the movements of the protective cylinder and the driving cylinder can also be brought about independently of the movement sequences that otherwise inevitably result from the same oil pressure and the different resistances, without affecting either the shooter or the
Driving cylinder having to do without common oil pressure generation system and oil guide.

0 0 9 8 19 / TIIb

Claims (6)

44 claims 1.) Hydraulic drive for horizontally movable sliding gates, especially for gates as locks in hydraulic engineering Systems, with the driving cylinder arranged between the gate and the fixed point, the one with a stationary oil pressure generation system is connected by a supply and return line passing through the fixed point, thereby characterized in that a piston (2) connected to the fixed point (5) via its piston rod (3) has a the piston rod (3a) engaging the gate (4,13) opposing piston (2a) in a travel cylinder common to the pair of pistons (1, 1a, 1b) is assigned, which is guided displaceably in the direction of the doorway and is set up so that alternately between and behind the piston pressurized oil triggers the closing and opening movement of the gate. 2.) Drive according to claim 1, characterized in that the The cylinder is made movable on the track (6) of the gate by means of a roller carriage (8) * 3.) Drive according to claim 1 and 2, characterized in that in one and the other hollow-drilled piston rod (3, 3 a) an axially inserted line piece (oil guide tube) (10, 10 a) into the central cylinder space (M ) opens and the piston rod jacket has slotted openings (11, 11a) immediately behind the piston, which leave a parallel line between the pipe section and the piston rod. (10b, 10c /) connects the extended annular space with the two outer cylinder spaces (A ₁ , A_) located behind the piston, which in turn are made hydraulically connected by an oil circulation pipe (9). BAD OR ₁ ¹ GiNAL documents {Art7 | tAb «.2Nr.lS« tz3cle «Change rev ·. ** · 9-ΐβ« ϊ 44 4.) Drive according to claim 1 to 3 »characterized in that that the protective cylinders (12) built into the gate are hydraulically coupled to the driving cylinder in such a way that the supply and return lines (10, 10b and 10a, 10c) coming from the oil pressure generation system (i4) and passing through the driving cylinder via the force application point (U ) is continued through connecting lines (L ₁ , L ") to the" contactor cylinders. 5 ·) Drive according to claims 1-4, characterized in that die'Kolbenflächen the contactor cylinder (12), taking into account the contactor resistances in relation to the piston surfaces of the driving cylinder, taking into account the driving resistance of the gate, are formed in such a way that through the oil contactor cylinder and drive cylinder respond one after the other. 6.) Drive according to claims 1-5 «characterized in that a certain individual movement of a contactor cylinder or the driving cylinder in a known manner by a with locking means intervening in the inevitable sequence of movements is achieved. BAD ORIQ'NAL 009819/1115 Blank page