DES0031114MA - - Google Patents

Description

Deeds TA.N s PR C cn H:

1. Manhole connection device with a common, motor-driven pressure oil generator powered oil-hydraulic drives for the individual units, such as shaft gates, Swiveling platforms, barriers, pushers, brakes and dividers, characterized in that for operating the units with low power requirements (such as shaft gates, swivel platforms, Locks, brakes and dividers) piston drives are provided in a manner known per se, while the slide is driven by

. a controllable, revolving oil motor takes place, and that from the governor lever of the oil motor one on known override control for the correct sequence of operations of the individual Aggregates, e.g. B. by mechanical or electrical actuated valves, is made dependent:

2. Device according to claim 1, characterized in that that in the piston drive with a glandless design of the piston rod leadthrough the leakage oil penetrating to the outside between the cylinder inner wall (1) and the working piston (2) for each individual Leakage oil lines (4) provided for the piston-driven unit in the oil collecting tank

(5) can flow.

Referred publications:

German Patent Nos. 501 755, 646 307, 598967,830662.

1 sheet of drawings

Claims (1)

S31114 XI / 35a A number of proposals have been made to use duct connection devices in place to operate from compressed air with hydraulic pressure media. However, these suggestions left it for 5. all driving units when translating the drive with the help of cylinders and pistons. Such training works for units with low power requirements and short commutes (Gates, barriers, swiveling platforms) satisfactory, However, ίο require long commutes and high power requirement, as is the case with the slide, large quantities of oil that moves in a short time Need to become; also the sealing of the glands makes some difficulties when over the usual working pressure of 4 to 6 atmospheres should be exceeded. There is also the difficulty to control and control the movement phases of the suspension driver within certain limits rules. Attempts have already been made to overcome these difficulties by using a slow running To encounter a special electric motor, however, had to accept that as a result of the two different working media, double cable paths, different control switches, etc. are necessary was. According to the invention, therefore, from a common, motor-driven pressure oil generator powered oil-hydraulic drives for the individual units, such as shaft gates, swing, stages, barriers, pushers, brakes and dividers, insofar as their actuation requires little effort requires (shaft gates, swivel platforms, barriers, brakes, dividers), from known, straightforward working piston engines, while a controllable, revolving oil motor is provided, the control lever of the oil motor being a known per se Forced control for the correct sequence of operations of the individual units, e.g. through mechanically or electrically operated valves, is made dependent. The invention also provides for the piston drives to implement this proposal, as shown schematically in the drawing, to train glandless and between. Leakage oil coming through the cylinder wall 1 and piston 2 and coming from the pressure pump 3 via special Leakage oil lines 4 (provided for each individual drive) are returned to the collecting container 5. The invention offers in addition to the mentioned advantages of the uniform 'operating means for linearly moving and rotating drives Possibility of using the necessary forced safety controls as well as purely compressed air-operated ones To apply systems analogously for the oil-powered facility and z. B. all control commands from the operating lever starting from the oil motor, via known solenoid valves to the other units to pass on.