摘要:
A vehicle electric drive assembly and a new energy vehicle are disclosed. The electric drive assembly comprises a motor (1) and a reducer (2). The motor (1) comprises a motor shaft (3), and the reducer (2) comprises an input shaft (4), an intermediate shaft (5), and an output shaft (6). The input shaft (4) is fixedly connected to the motor shaft (3), the output shaft (6) and the input shaft (4) are coaxially provided, the intermediate shaft (5) is provided parallel to the input shaft (4) and the output shaft (6), and the input shaft (4) drives the output shaft (6) to rotate through the intermediate shaft (5). The electric drive assembly has the advantages of compact structure, simple manufacturing, low cost, high performance, and small space occupation.
摘要:
A method for designing a gearset meeting one or more design targets is described. In particular, the design target is efficiency. Initially, a size and ratio of the gear set is specified. Gear friction coefficients are then calculated, and a value for a design target for the gear set is calculated. One or more of the macro-geometry parameters are modified, and the macro-geometry parameters are chosen such that the advantageous effects of one macro-geometry parameter on the design target counteract any disadvantageous effects of another macro-geometry parameter. In this way, a design for a gearset meeting the one or more design targets is produced. The efficiency calculation includes the effect of a lubricant. Further design targets can include gear noise and gear durability.
摘要:
Provided is a torque converter for a vehicle including a vibration reduction apparatus included in the torque converter for a vehicle to attenuate vibration and impact in a rotation direction of the torque converter. Particularly, provided is a torque converter for a vehicle to which a vibration reduction apparatus using a pendulum is coupled by having the pendulum disposed on a hub included between a turbine and a transmission to thereby improve damping efficiency.
摘要:
The invention relates to a hoisting machine arrangement (1) comprising a rope drum (2), which has a driven gearwheel (3); a hoisting motor for driving the rope drum; and a gear (5) between the hoisting motor (4) and the rope drum, the gear having a body (6) and a driving gearwheel (7), the driving gearwheel (7) of the gear (5) being coupled to the driven gearwheel (3) of the rope drum (2). The body (6) of the gear has a first drilling (8), which is arranged for fitting a shaft (9) of the driving gearwheel (7); and a second drilling (10), which is parallel to the first drilling (8) and arranged for fitting a shaft of the rope drum (2) or the like (11). The invention also relates to a method for preparing a gear of a hoisting machine arrangement (1 ) of this type.
摘要:
A torque transmitting assembly is provided. The torque transmitting assembly includes a generally cup shaped outer shell having a closed end and an open end. The closed end has at least one raised portion formed therein. The outer shell includes an outwardly extending lip surrounding the open end of the outer shell. The open end of the outer shell is adapted to be operatively engaged with a first rotating member. A generally disk shaped inner member has a central aperture and a central axis. The inner member includes at least one tab extending axially outwardly therefrom and engages the raised portion of the outer shell to facilitate a transfer of rotation between the outer shell and the inner member. The central aperture is adapted to be operatively engaged with a second rotating member. The inner member is received inside said outer shell.
摘要:
The invention relates to a deflection pulley (1), designed for a traction mechanism drive, which comprises an anti-friction bearing (2) and an annular body (4). A locking screw (8) and a distance bush (9) act as retaining elements. To create a locking element (17) for transportation, the distance bush (9) is provided with at least one projection (18), directed radially inwards, said projection radially overlapping a section of thread (20) of the locking screw (8).
摘要:
Die Erfindung betrifft eine Getriebe-Antriebseinheit (10) und ein Verfahren zur Dichtheitsprüfung derselben, mit einem Getriebegehäuse (10) und einem auf einer Achse (14) gelagerten Abtriebsrad (18) mit einer Öffnung (22) im Getriebegehäuse (12), durch die die Achse (14) herausgeführt ist, wobei das Abtriebsrad (18) zur Druckbeaufschlagung des Gehäuseinnenraums (40) mindestens einen Luftkanal (42) aufweist.
摘要:
The method includes the steps of: acquiring a signal ( s(t) ) from an acceleration sensor; calculating the Fourier transform ( F(h) ) in the frequency domain of the signal ( s(t) ) to obtain a sequence of samples; acquiring from the sequence of samples a set of samples including samples at the meshing frequency of the gears monitored by the sensor, and samples at the harmonic frequencies of the meshing frequency; calculating the energies associated with the set of samples and the signal; calculating a noise energy parameter ( MFP ) correlated to the ratio between the energy of the set of samples and the energy of the signal; comparing the noise energy parameter ( MFP ) with at least one predetermined threshold ( TH1 ); and generating an alarm signal in the event the noise energy parameter ( MFP ) exceeds the threshold value ( TH1 ).
摘要:
The method includes the steps of: acquiring a signal ( s(t) ) from an acceleration sensor; calculating the Hilbert transform (H[T' 1m (i)]) of the signal filtered and sampled beforehand; defining a complex signal ( C 1m (i) ) having the filtered and sampled signal ( T' 1m (i) ) as the real part and the Hilbert transform ( H[T' 1m (i)] ) of the filtered and sampled signal ( T' 1m (i) ) as the imaginary part; calculating a phase signal ( FC(i) ) given by the difference between the phase of the complex signal ( C 1m (i) ) and a reference phase ( P(i)+P 0 ); calculating the variance ( V ) of the phase signal ( FC(i) ); comparing the variance ( V ) with at least one predetermined threshold ( TH1 ); and generating an alarm signal if the variance ( V ) exceeds the threshold value ( TH1 ).
摘要:
According to the present invention, a nut is in a state of being received by nut receiving means. In this state, a ball-embedding nozzle is fitted into the nut so that a gap between the inner circumference of the nut and the outer circumference of the ball-embedding nozzle is uniformly formed around the entire circumference thereof. Balls are supplied into a screw groove of the nut via a ball supply path in the ball-embedding nozzle.