摘要:
Die Erfindung betrifft einen Antriebsstrang (11) für eine portable, insbesondere elektrische Maschine, insbesondere eine Hand-Werkzeugmaschine (10), mit mindestens einer Drehantriebskomponente (30), die mit einem Lager (18) um eine Drehachse (38) drehbar gelagert ist, das in einer Lager-Aufnahme (46) aufgenommenen ist. Die Erfindung betrifft ferner eine damit ausgestattete portable elektrische Maschine, insbesondere eine Hand-Werkzeugmaschine (10). Bei dem Antriebsstrang (11) ist vorgesehen, dass für eine radial gepufferte relative Radialauslenkung der Drehantriebskomponente (30) zu der Lager-Aufnahme (46) oder umgekehrt zwischen einerseits dem Lager (18) und andererseits der Lager-Aufnahme (46) und/oder der Drehantriebskomponente (30) eine elastische Puffereinrichtung (50) mit einem sich zumindest über einen Teilumfang des Lagers (18) erstreckenden Radialpuffer (51) angeordnet ist, und dass zur Begrenzung der relativen Radialauslenkung im Bereich des Lagers (18) eine Radialanschlaganordnung (64) mit mindestens einem Radialanschlag (63) vorgesehen ist, der im Ruhezustand des Antriebsstrangs (11) in einem Radialabstand zu dem Lager (18) angeordnet ist und die relative Radialauslenkung der Drehantriebskomponente (30) oder der Lager-Aufnahme (46) im Bereich des Lagers (18) auf einen Radialpufferweg begrenzt.
摘要:
A power tool (10) that includes a housing assembly (12), a motor (14) received in the housing assembly, a trigger (122), an output spindle (22), a transmission (16) and a bearing (80). The transmission is received in the housing assembly and transmits rotary power between the motor and the output spindle. The transmission has an output planetary stage (52) with an output planet carrier (74). The transmission also has a member that is axially movable between a first position, which causes the transmission to operate in a first speed ratio, and a second position in which the transmission operates in a second speed ratio that is different than the first speed ratio. The bearing (80) is disposed radially between and engages both the housing assembly and the output planet carrier. The output spindle is at least partially received into the output planet carrier such that the bearing indirectly supports the output spindle.
摘要:
Werkzeuggerät (1) aufweisend eine Antriebseinrichtung (2) mit einem Antriebsmotor (3) und einer Antriebswelle (4), die von dem Antriebsmotor (3) in einer Hinrichtung (12) und einer Rückrichtung (13) um eine Drehachse (14) drehbar ist, eine Abtriebseinrichtung (5) mit einer Abtriebswelle (6), die in einer Bewegungsrichtung (12) drehbar ist, ein zwischen der An- und Abtriebswelle (4, 6) angeordnetes Planetengetriebe (8) mit mehreren Planetengetriebekomponenten, die als Sonnenrad (21), Planetenträger (22), Planetenrad (23) und Hohlrad (24) ausgebildet sind, wobei die Antriebswelle (4) mit einer ersten der Planetengetriebekomponenten (21) drehfest gekoppelt ist, und eine Vorrichtung (10) zum Schalten zwischen einer ersten und zweiten Übersetzungsstufe des Planetengetriebes (8).
摘要:
A tool having a housing assembly, which defines a handle, a motor assembly, a trigger assembly, a spindle and a transmission assembly. The motor assembly is received in the housing assembly and has an output shaft. The trigger assembly is coupled to the housing assembly and is configured for use in actuating the motor assembly. The transmission assembly transmits rotary power between the output shaft of the motor assembly and the spindle. The transmission assembly includes a planetary stage with an input sun gear, an output planet carrier and a compound planet gear having a first planet gear and a second planet gear coupled together for common rotation on the output planet carrier. The planetary stage is selectively operable in a first gear reduction and a second, relatively lower gear reduction in which the compound planet gear cooperates to produce at least one intermediate gear reduction within the planetary stage.
摘要:
The present invention is directed at improving the usability of an electric power tool by facilitating a trigger operation of a variable speed switch of the electric power tool. The electric power tool of the present invention is configured to control power supply to a motor based on an operational amount of the variable speed switch, and further configured to perform in an intermittent control mode in which power supply to the motor is varied intermittently in the same manner as if an ON operation and an OFF operation of the variable speed switch were repeated. It is also able to perform in a continuous control mode in which power supply to the motor is varied based on the operational amount of the variable speed switch.
摘要:
A right angle attachment for a power tool, comprising a housing including a handle and a gear case attached to the handle; an input shaft extending through the handle; a first right angle gear rotatably mounted within the gear case and drivingly attached to said input shaft; a second right angle gear rotatably mounted within the gear case and meshingly engaged with said first right angle gear, said second right angle gear having a polygonal opening therein adapted for receiving a tool bit; and characterized in that the right angle attachment further comprises a bit release device supported by said gear case and in communication with said polygonal opening in said second right angle gear.
摘要:
An electric tool (1) may include an electric motor (3), a spindle (11) to which a working tool (15) may be attached, and a torque transmission path provided between the electric motor and the spindle and including a first rotary member (21) and a second rotary member (25). A torque transmission device (20) may be provided between the first rotary member and the second rotary member and may include a plurality of resiliently deformable torque transmission members (22, 23).
摘要:
Embodiments of the present invention may include a power tool (1) including a drive motor (10) and a continuously variable transmission mechanism (30). The continuously variable transmission mechanism (30) may include a sun roller (32) rotated by a drive motor (10), the sun roller (32) configured to press on a plurality of planetary rollers (33), a holder (37) radially supporting the plurality of planetary rollers (33), a shift ring (36) being in internal contact with the plurality of planetary rollers (33), and a resistance-reducing portion (37c) disposed at the holder (37) to fill a gap between the two of the planetary rollers (33).