摘要:
An electric drive unit and method of assembling the same is disclosed. The electric drive unit includes a rotor having a rotor shaft, and gear shaft, where the rotor shaft is inserted into the gear shaft. The gear shaft is supported by two bearings, while the rotor shaft supported directly at one end by a bearing and at the other by the gear shaft. A wave spring is also disclosed that provides an axial loading to the rotor shaft. Also disclosed is a balancing ring secured to an end of the rotor via a locknut. The balancing ring can be machined in order to balance the rotor. The rotor shaft can be connected to the gear shaft via a spline connection. The rotor shaft can bear against the gear shaft via a pilot journal and pilot bore defined on the rotor shaft and gear shaft respectively.
摘要:
A housing is made of resin and receives a worm. A worm wheel is made of resin and is received in the housing to mesh with the worm. A support shaft includes a shaft portion and a boss portion. The shaft portion rotatably supports the worm wheel. The boss portion is made of metal and is fixed to the housing. The boss portion holds the shaft portion and includes a slidably engaging surface that slidably engages the worm wheel.
摘要:
Two laminating sheets each formed by laminating a carbon fiber sheet and a film of a thermoplastic resin are set on heating in an area of a mold corresponding to a tubular portion of a rack housing. The mold is clamped, the carbon fiber sheet is impregnated with the thermoplastic resin of the film, each of the two laminating sheets is pressed into a shape with a half tube corresponding to a half circumference of the tubular portion and connection portions at both ends of the half tube in a circumferential direction, and two half tubes are bonded together at the connection portions thereof to form the tubular portion.
摘要:
A power transmission device includes a gear speed reduction mechanism which includes an input shaft, an input pinion provided on the input shaft, a rotary shaft other than the input shaft, and a gear incorporated to the rotary shaft, and a casing which accommodates the gear speed reduction mechanism. The casing is made of resin and includes a casing body which includes an incorporating opening for incorporating the gear and a cover which closes the incorporating opening. The casing body includes an input side opening with the opening being a size that the input pinion can be inserted but the gear cannot be inserted. In addition, the rotary shaft is supported by a bearing support which is formed in the casing body, and the bearing support of the rotary shaft is not formed on the cover.
摘要:
A manufacturing method includes: forming a tubular portion of a rack housing by press forming from prepregs formed by stacking fiber-reinforced composite materials obtained by impregnating fiber sheets with a thermoplastic resin; and thereafter injecting a thermoplastic resin containing fillers for injection molding to form coupling portions integrated with metal rings. A rack housing is manufactured by the manufacturing method described above.
摘要:
The invention concerns a device (1) for protecting a breather membrane (2) enabling the ventilation of a member, notably a gear motor of a wiper system, said device including a support (3) intended to accommodate said membrane (2) on the surface of said member and a cover (4) for protecting said membrane (2), said device (1) being configured to allow circulation of air between the interior and the exterior of the member via said membrane (2).According to the invention, said cover (4), moulded in one piece with said support (3), is articulated relative to said support (3) so as to enable fixing of said membrane (2) onto said support (3) in an open position of said cover (4) and to cover said membrane (2) in a closed position of said cover (4).
摘要:
An electric drive unit and method of assembling the same is disclosed. The electric drive unit includes a rotor having a rotor shaft, and gear shaft, where the rotor shaft is inserted into the gear shaft. The gear shaft is supported by two bearings, while the rotor shaft supported directly at one end by a bearing and at the other by the gear shaft. A wave spring is also disclosed that provides an axial loading to the rotor shaft. Also disclosed is a balancing ring secured to an end of the rotor via a locknut. The balancing ring can be machined in order to balance the rotor. The rotor shaft can be connected to the gear shaft via a spline connection. The rotor shaft can bear against the gear shaft via a pilot journal and pilot bore defined on the rotor shaft and gear shaft respectively.
摘要:
A gear box includes a gear box body of a reducer to which a motor is mounted. The gear box body includes a worm, wheel holding section where a worm wheel of the reducer is held, and a motor holding section, where a part of the motor is contained, the motor holding section having a motor mounting opening. The motor holding section is configured such that a bottom of the motor holding section is provided in a region between a line L1 and a line L2. Here, the line L1 passes through the center C of the worm wheel holding section and is perpendicular to the axis line X of a motor shaft. The line L2 is a tangent line passing through an outer edge portion located near a circular outer peripheral wall of the worm wheel holding section on a motor side and is perpendicular to the axis line X of the motor shaft.
摘要:
The invention relates to a transmission with a transmission housing and at least one hydrodynamic component, of which at least one region is arranged in an integral manner with the transmission housing of the hydrodynamic component. The transmission housing is arranged in a substantially tubular way with an opening at each end. The region of the hydrodynamic component which is arranged integrally with the transmission housing is arranged as a functional element of the hydrodynamic component and arranged between the openings. The inner cross section of the transmission housing is arranged to be constant or expanding from the functional element to the respective opening. The transmission housing can thus be demolded in a simple manner and can be cast without any lost cores in permanent molds.
摘要:
A method for making gearmotors comprising a casing, a pinion and a gear, meshed with the pinion, both supported by the casing, comprises the steps of: preparing a mould for the casing; making the casing by casting in the mould; the step of making the casing consisting of a step of injecting a molten plastic material into the mould so that the casing is formed by the plastic material once it has cooled.