摘要:
A method for the assembly of universal joints with radially pretensioned fork arms, consisting of the steps of inserting and positioning the joint cross in the joint fork, pressing in the bearing and fixing them by means of pressure units, one of which supports each fork arm and pretensioning each fork arm individually during the entire pressing-in and/or fixing phase by means of the tipping force resulting from the pressure prevailing between the support element and the pressing/peening tool, reduced by a partial force following in response to the amount of the pressing force.
摘要:
A use of a lubricant comprising at least one reaction product of mono-di- and/or poly-isocyanate with unbranced and/or branced, unsaturated and/or saturated, alicyclic poly-amine with carbon numbers from 5 to 24, at least between at lease two elements, which are movable against each other.
摘要:
A test circuit is provided, which is independent of a power supply and which enables a circuit breaker to be tested in a reliable manner. The test circuit includes a test coil which is devoid of electric potential and is wound around a totalizing current transformer. The test coil is preferably short circuited using a test switch and a connectable load. This simulates the occurrence of a residual current. The selection of an appropriate connectable load allows the sensitivity of the current circuit breaker to be tested in an advantageous manner.
摘要:
A protective switching device, such as a differential-current circuit breaker, having a corebalance transformer which monitors a line network and which, via a tripping circuit and an actuation circuit, actuates a release which is coupled to a switching mechanism in order to operate a power breaker. The invention provides that a tripping circuit, which can be tripped by means of a remote tripping signal, is connected to a transformer which can be actuated on the secondary side and whose primary side is connected to an actuation circuit of the release for remote tripping of the protective switching device.
摘要:
A reset circuit is suggested for a microprocessor with which the microprocessor is reset, if the predetermined program ranges are left. During each cyclical input signal it is determined whether an output signal appears after a predetermined time. If this is not the case the reset process is performed. The reset process is also initiated if a predetermined output of the microprocessor remains in a defined position over an unduly long time.
摘要:
A sealing device for bearing bushings, especially for universal joints including a cup-shaped bearing bushing overlying a universal joint pin comprising an inner sealing ring, a sheet metal part connected to the bearing bushing adapted to fix the inner sealing ring in place in an axial direction, and an outer sealing ring provided on a shoulder of the joint pin supported in the bearing bushing, the inner sealing ring has a retaining part between the rolling elements and the free end of a preferably radially oriented shank of the sheet metal part, which has one or more openings, which connect the spaces defined by the outer sealing ring, the inner sealing ring, and the sheet metal part to each other.
摘要:
Arrangement for the die casting of a roller bearing cage having pockets for the rolling bodies includes an outer housing covering the die casting mold and having guide openings opening at the central planes of the respective pockets and main and auxiliary slides arranged side by side in each guide opening. The main and auxiliary slides have guiding surfaces at their inner ends directed at an angle to the central plane, the guiding surfaces being laterally opposite one another and supporting one another. Each auxiliary slide has a lateral bulge on the side thereof opposite the guiding surface of the guide opening for defining a lateral limit wall of the pocket with holding projections for the rolling bodies on the inner and outer edges. The arrangement in accordance with the invention requires few components, provides a compact construction, and is economically produceable. The main slides are each operable from the exterior of the apparatus, and have recesses with inner and outer shoulder surfaces. The respective auxiliary slides have holding lugs extending into the recesses of the respective main slide between the inner and outer shoulder surfaces thereof with play. The auxiliary slides further have support surfaces on the sides thereof opposite the holding lugs with an outer edge running along the boundary wall of the corresponding pocket and supported on the wall of the guide opening of the housing, the auxiliary slide being arranged to be tiltable in the guide opening about the boundary edge.
摘要:
The aim of the invention is to be able to arrange or secure an elastic nozzle in a device, especially a casting machine, using simple design measures while allowing the nozzle to be quickly replaced in the device using simple mounting steps. Said aim is achieved by a connection piece (1) which is particularly suitable for securing an elastic nozzle (3) in a casting machine. The connection piece (1) preferably has a hollow cylindrical shape and includes a securing mechanism (4), especially a thread, at one end. A clamping unit (2) is connected to the connection piece (1). The connection piece (1) and/or the clamping unit (2) has/have a receptacle for the nozzle (3), and the nozzle (3) is connected to the connection piece (1).
摘要:
The present invention relates to an apparatus for short circuit protection. The apparatus comprises two supply inputs for connecting the apparatus to a terminal of a power supply and two supply paths being connected together and to the supply inputs, wherein each supply path comprises a disconnection means for disconnecting the supply path. Further the apparatus comprises a determination means for determining a current flowing from one of the supply paths through the other one of the supply paths and a control means for controlling the disconnection means of the supply paths dependent on the current determined by the determination means, wherein the control means is connected with the disconnection means and the determination means.
摘要:
A method and an arrangement (15) for detecting the actuation of an operator-controlled element (1) make possible a reliable detection of an operator-controlled function to be activated by the operator-controlled element (1) independently of environmental and wear conditions. The operator-controlled element (1) can be actuated with different adjustable degrees of actuation. Various operator-controlled functions of the operator-controlled element (1) are realized in dependence upon the degree of actuation. The operator-controlled element (1) is actuated against a spring force and at least two degrees of actuation are characterized by different spring constants. The at least one of the operator-controlled functions of the operator-controlled element (1) is detected in dependence upon the spring constant assigned to the instantaneous degree of actuation.