The invention relates to a pneumatic lifting gear and a method for detecting and recording operating statuses and parameters of a pneumatic lifting gear. In order to provide a pneumatic lifting gear and a method for detecting and recording operating statuses and parameters of a pneumatic lifting gear, which constructionally easily allows for operating statuses and parameters of the lifting gear to be reliably determined with a high level of accuracy, according to the invention, the pneumatic lifting gear comprises a pneumatic motor for lifting and lowering a load, a first fluid inlet of the motor for lifting the load, a second fluid inlet of the motor for lowering the load, and a fluid outlet out of the motor, wherein at least one, preferably two, pressure sensors are arranged in the region of the first and/or the second fluid inlet and at least one further pressure sensor is arranged in the region of the fluid outlet. Furthermore, the pneumatic lifting gear comprises a data processing unit which is designed to detect the pressure values of the pressure sensors and to calculate operating statuses and parameters of the lifting gear therefrom, and a load spectrum recorder for recording the operating statuses and parameters of the lifting gear.
The invention relates to a manual controller for indirectly controlling a fluid-operated lifting device, comprising at least one control fluid input and at least one control fluid output, a control valve, which is located between the control fluid input and the control fluid output, and an operating element for actuation of the control valve by a user. In order to provide a manual controller for indirectly controlling a fluid-operated lifting device and a fluid-operated lifting device which have a particularly precise control characteristic adapted to the user in question and to the usage situation in question and which therefore are found to be particularly pleasant to use, according to the invention an inlet throttle is provided in at least one control fluid input in order to set the flow or the volumetric flow rate to the control valve and/or to set the control characteristic of the manual controller.
F16K 3/24 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
F16K 3/32 - Means for additional adjustment of the rate of flow
A fluid-operated hoist and method for operating a fluid-operated hoist. The hoist is particularly convenient to produce and install and can be permanently and reliably operated without frequent maintenance. The hoist includes a fluid supply line supplying an operating fluid to the hoist for operating the hoist, a generator connected to the fluid supply line for generating electricity by the operating fluid, and an electrical consumer on the hoist that is operated by the electricity generated by the generator.
The invention relates to a fluid-operated lifting gear (1) and to a method for operating a fluid-operated lifting gear (1). In order to provide a fluid-operated lifting gear (1) and a method for operating a fluid-operating lifting gear (1), wherein the lifting gear is particularly convenient to produce and to install and can be permanently and reliably operated without frequent maintenance, according to the invention the lifting gear has a fluid supply line (2) supplying an operating fluid to the lifting gear for operating the lifting gear, a generator (3) connected to the fluid supply line for producing electricity by means of the operating fluid and at least one electrical consumer (4) on the lifting gear, which is operated by means of the electricity produced by the generator.
B66C 13/28 - Circuits for controlling the lowering of the load by AC motors utilising regenerative braking for controlling descent of heavy loads and having means for preventing rotation of motor in the hoisting direction when load is released
A vane motor with a rotor body driven by compressed air having vane gaps for radially movable vanes and a rotor shaft for rotatably bearing the rotor body relative to a motor bushing. A method for lubricating a vane motor that ensures particularly long, low-service operation is provided. The rotor shaft is configured as a hollow shaft with a first lubricant reservoir in the interior. The first lubricant reservoir has a lubricant filling opening accessible from the outside of the vane motor. The first lubricant reservoir is connected by at least one radial lubricant hole to at least one further lubricant reservoir arranged in a section of the rotor body between two vane gaps, and/or is connected to an outlet opening arranged in one of the vane gaps for supplying lubricant into the vane gap.
F01C 1/344 - Rotary-piston machines or engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
6.
Control valve assembly for an indirect pneumatic control, and method for controlling a working fluid pressure
A control valve assembly for indirect pneumatic control and method for controlling a working fluid pressure, which enable precise, sensitive and speed-variable controlling. The assembly includes two valve units, a working fluid inlet, and a control fluid inlet. A working fluid channel connects the working fluid inlet through the two valve units to an outlet. A valve piston arranged within a valve cylinder of the valve units is movable between open and closed positions. A spring element biases the valve piston toward the closed position, and a control pressure chamber applies a control pressure counteracting the spring element's bias. When a control pressure is applied in the first chamber, the first valve piston is moved to the open position. Two opposite valve surfaces form a valve opening opened at varying widths when the valve piston is moved in the valve cylinder because of a changing control pressure, and the working pressure can be finely adjusted corresponding to the valve opening width depending on the control pressure.
F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
F15B 13/042 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
A hoist, a hoisting apparatus with said hoist and a method for securing a hoist. A hoist body having a drive mechanism for raising or lowering a hoist chain or a hoist cable is suspended from a support device by a hoist support. A safety device having a loosely arranged coupling element and a damping element is mounted between the hoist body and the support device. If the hoist support is released, the hoist body can drop by a drop height until the coupling element becomes taut. The damping element then damps the fall under the load of the hoist body, the hoist chain and whatever load is suspended from it.
The invention relates to a control valve assembly (1) for an indirect pneumatic control and to a method for controlling a working fluid pressure. The aim of the invention is to provide a control valve assembly (1) and a method for controlling a working fluid pressure using a control fluid, said assembly and method allowing a precise, sensitive, speed-variable control without large output losses and control delays. This is achieved in that the control valve assembly (1) has two pneumatic valve units (2, 3) which are arranged one behind the other; a working fluid inlet (4); a control fluid inlet; a working fluid channel (6) which connects the working fluid inlet (4) to an outlet (5) by means of the two valve units (2, 3); a respective valve piston (9, 10) which is arranged within each valve cylinder (7, 8) of the first and second valve unit (2, 3) and which can be moved between an open position and a closed position; a respective spring element (11, 12) which biases the first and second valve piston (9, 10) towards the closed position; and a respective control pressure chamber (13, 14) which is connected to the control fluid inlet for applying a control pressure to each valve piston (9, 10), said control pressure counteracting the bias of the spring element (11, 12); wherein the first valve unit (2) is produced such that the first valve piston (9) is moved from the closed position to the open position when a control pressure is applied in the first control pressure chamber (13), and two opposite valve surfaces (16, 17) which are angled relative to each other are arranged on the surface of the valve cylinder (8) and the valve piston (10) so as to extend along the movement direction (V) in the second valve unit (3) in a blocking and control region (15) of the working fluid channel (6) such that the valve surfaces (16, 17) form a valve opening that is opened to varying widths when the valve piston (10) is moved in the valve cylinder (8) as a result of a changing control pressure, and the working pressure can be finely adjusted on the basis of the control pressure according to the valve opening.
F15B 11/10 - Servomotor systems without provision for follow-up action with only one servomotor in which the servomotor position is a function of the pressure
F15B 13/02 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
F15B 13/042 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
F15B 11/042 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed by means in the feed line
B66D 1/44 - Control devices non-automatic pneumatic or hydraulic
The invention relates to a vane motor (1), comprising a rotor body (2), which is driven by compressed air and which has vane gaps (3) for radially movable vanes, and a rotor shaft (4) for rotatably mounting the rotor body (2) with respect to a motor bush (11). In order to provide a vane motor (1) and a method for lubricating a vane motor (1) that ensure particularly long, low-maintenance operation, the vane motor (1) being easy to maintain and being capable of particularly economical and environmentally friendly operation, it is provided that the rotor shaft (4) is designed as a hollow shaft having a first lubricant reservoir (5) in the interior, the first lubricant reservoir (5) having a lubricant introduction opening (6) accessible from the exterior (Ä) of the vane motor (1), and the first lubricant reservoir (5) being connected, by means of at least one radial lubricant bore (7), to at least one further lubricant reservoir (50) arranged in a portion (20) of the rotor body (2) between two vane gaps (3) and/or to an outlet opening (8) arranged in one of the vane gaps (3) for feeding lubricant into the vane gap (3).
F01C 1/344 - Rotary-piston machines or engines having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
A motor, comprising: an internal motor chamber, and a rotor rotatable therein. The rotor is drivable by having a pressure medium applied to it and a braking element for braking the rotor. The braking element is axially arranged directly adjacent to the rotor, wherein the braking element and the rotor are axially moveable with respect to each other and form a spring-loaded friction pair, at least between a front end face of the rotor and the braking element.
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