摘要:
A roller bearing cage includes the following features:The cage comprises an annular circumferential element, from which bridge elements branch off, roller bodies of the roller bearing being disposable between the bridge elements,the circumferential element comprises a plurality of uniform section elements, andthe initially-loose section elements and bridge elements are connected with each other to form the cage.
摘要:
The invention involves a process for controlling the rotational speed of a drive motor during a start-up period, in a drive train, containing at least one starter element that can be coupled to the drive motor, in a rotationally fixed manner, in the form of a hydrodynamic coupling, containing a primary blade wheel and a secondary blade wheel, which form together at least one toroid-shaped working space. According to the invention, the rotational speed of the drive motor is set as a function of the power that can be consumed by the hydrodynamic coupling. The consumable power can be controlled or regulated.
摘要:
A method for controlling the power consumption of a starting element (1) in the form of a hydrodynamic clutch (2). The clutch comprises an impeller (4) and a turbine wheel (5), which together form at least one toroidal working chamber (6) that can be filled with an operating medium, and is located in a drive train (3) with at least one other drive motor that can be coupled to the hydrodynamic clutch. The method is characterized in that the power consumption can be freely adjusted as a function of the volumetric efficiency of the hydrodynamic clutch and the method has the following characteristics: the supply or evacuation of the operating medium to or from the working chamber is influenced by the generation and introduction of a static superposition pressure in the closed rotating circuit; the operating medium is supplied or evacuated to or from the working chamber by the application of a superposition or influencing pressure to the operating medium level in the operating medium reservoir (40).
摘要:
A bearing assembly comprises at least two adjacently-disposed bearings. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. A bearing support retains the at least two bearings such that respective rotational axes of the at least two bearings extend in parallel. A spacer has at least two cylindrical openings configured to receive the respective cylindrical outer circumferential surfaces of the bearing outer rings such that a circumferential inner surface of each opening covers at least a portion of a width of the bearing outer ring received therein and surrounds an entire circumference of the bearing outer ring received therein. The bearing support is not fixedly connected to the spacer.
摘要:
A rolling bearing cage has at least U-shaped limited pockets for rolling bodies. In the rolling cage, the U-shaped delimitation of one of the pockets is configured by the bonded connection of two web elements on an annular circumferential element, the circumferential element is free of cavities and penetrations for a complete connection to sections of the web elements, and the elements are configured to have a shape adapted to each other for placing the elements in the intended position for the bonded connection such that the positions of the web elements on the circumferential element is predetermined in the circumferential direction and/or in the axial direction of the circumferential element.
摘要:
The invention relates to a method for collecting and evacuating run-off water from the inner arc of the strand guide (8) of a beam blank casting machine, according to which the cast strand (2) is solidified and the required dissipation of heat is achieved, among other things, by sprayed water, whereby run-off water can also collect on the inner arc of the strand (2). The run-off water is collected using a suction head (1). The run-off water that is collected in the suction head is fluidized using fluidizers or momentum inhibitors. The fluidized water is sucked off and the water-air mixture is split into water and air in a separation device. The invention also relates to a device for carrying out said method, comprising at least one suction device that is arranged or can be driven along the strand guide (8), said suction device having an attachable suction head (1) and being equipped with fluidizers. The suction device (4) is driven along the beam blank preliminary section (9) by means of manipulators (7).
摘要:
The invention relates to a drive unit, comprising an internal combustion engine with a crankshaft; an exhaust line; an exhaust gas turbine which is acted on by the exhaust gas line, which is arranged downstream of the internal combustion engine and has the purpose of transmitting a positive torque to the crankshaft in the traction mode; a hydrodynamic unit which is arranged downstream of the exhaust gas turbine and has two turbine blades which form a torus-shaped working chamber; the hydrodynamic unit has a drive connection to the drive train; and a parking brake is provided for securing the primary turbine wheel of the exhaust gas turbine.
摘要:
A method of controlling a hot face temperature of a copper plate of a mold for continuous casting of steel with variable casting rates and including: providing a bypass line for connecting a mold water outlet with a mold water inlet for obtaining, at the mold water inlet a mixture of heated mold water and cooled mold water, which mixture is fed into the mold as a cooling water having a chageable temperature depending on casting conditions; providing, at the mold water outlet, a two-way valve connectable with the bypass line and a heat exchanger for cooling the heated mold water for distributing the heated mold water between the bypass line and the heat exchanger with; and control of the operation of the two-way valve in accordance with the exit water temperature to maintain a constant predetermined water temperature at the mold water outlet, whereby a constant hot face temperature is maintained.
摘要:
A drive unit includes a hydrodynamic retarder having a rotor paddle wheel, a stator paddle wheel, and a housing surrounding the rotor and stator wheels. The unit includes a coolant cycle system for an internal combustion engine, the coolant for this coolant cycle also being a working medium of the retarder. The drive unit further includes a working medium container for the coolant which is connected to the coolant cycle system. A connecting pipe is disposed between the working medium container and a hydrodynamic center of the retarder. A valve is disposed in the connecting pipe.
摘要:
A roller bearing cage includes the following features:The cage comprises an annular circumferential element, from which bridge elements branch off, roller bodies of the roller bearing being disposable between the bridge elements,the circumferential element comprises a plurality of uniform section elements, andthe initially-loose section elements and bridge elements are connected with each other to form the cage.