摘要:
An angle grinder for driving a cutting or grinding tool (12), includes a housing (11) having a first housing section (14) extending along a first axis (A1), and in which a motor (18) is arranged, and a second housing section (15) extending along a second axis (A2) and in which an accumulator receptacle is arranged, with the first and second axes (A1, A2) extending at an angle (α) to each other; and with a handle (20) having its first end (21) secured to the first housing section (14) and its second end (22) secured to the second housing section (15).
摘要:
An angle grinder for driving a cutting or grinding tool (12), includes a housing (11) having a first housing section (14) extending along a first axis (A1), and in which a motor (18) is arranged, and a second housing section (15) extending along a second axis (A2) and in which an accumulator receptacle is arranged, with the first and second axes (A1, A2) extending at an angle (α) to each other; and with a handle (20) having its first end (21) secured to the first housing section (14) and its second end (22) secured to the second housing section (15).
摘要:
A rotor (100) for an electric motor (1000). The rotor (100) has a rotor shaft (10) and a rotor core (20) attached onto the rotor shaft (10). The rotor core has a plurality of core laminations (40, 140) arranged along an axis (A) of the rotor core (20), and has a plurality of poles of at least one pole pair, the core lamination (40, 140) having: a central recess (70, 170) through which the rotor shaft (10) passes and which has a contour (71, 171) as well as adjacent areas (AF), and a plurality of receiving structures arranged at peripheral angular positions in order to each form a receiving element for a pole-forming element on the rotor core (20). In this context, it is provided according to the invention that the rotor core has a surface (OF) facing the rotor shaft (10) that is formed together with the adjacent areas (AF) of the central recess (70, 170) of the plurality of core laminations (40, 140), and that has uneven areas crosswise to the axis (A) of the rotor core (20) that are formed by the contours (71, 171) of the central recesses (70) of the plurality of core laminations (40, 140). The contours (71, 171) of the central recesses (70, 170) of at least a first core lamination and a second core lamination of the plurality of core laminations (40, 140) are arranged so as not to be congruent with each other.
摘要:
An electrical hand-held power tool includes a drive motor, a ventilation device (10) for generating an air flow (L) along a main flow path (26) for cooling the drive motor (8), and an electronic device (22) for controlling operation of the drive motor (8) all of which are located in the housing (4), and a plurality of air conducting elements (30) that project from an inner wall (32) of the housing for limiting an auxiliary flow path (36) through which at least a portion of the air flow (L) is forwarded to the electronic device (22), with the air conducting elements (30) forming an auxiliary path inlet (40) of the auxiliary flow path (36) and which projects between a main path inlet (24) of the housing (4) and the ventilation device (10) into the main flow path (26), so that the auxiliary path inlet (40) is walled off from the ventilation device (10).
摘要:
A depth stop for a hand-held screw driving tool including a housing, a drive located in the housing for rotating a spindle about a spindle axis, and a chuck for receiving a working tool, connected with the housing and projecting from the housing in an axial direction defined by the spindle axis with the depth stop (3; 10; 16; 22) including a sleeve-shaped element for surrounding the chuck, connectable with the tool housing (2) and having at lease one axially extending opening formed in a wall of the sleeve-shaped element and piercing the wall through an entire wall thickness, and with the opening having, at its end remote from the housing (2) an entrance region (7; 21; 25) open in the axial direction.
摘要:
An electrically driven hand-held tool including a housing (2; 12; 22; 32), an electromotor (20; 30; 40), a gear set for transmitting rotation of an output shaft of the electromotor to a drive spindle, and a fan-wheel all arranged in the housing (2; 12; 22; 32), with the fan-wheel providing, during operation of the tool, for aspiration of air through the suction openings (6; 16; 26; 36) formed in the housing for directing the aspirated air past the electromotor and the gear set for cooling same, and for expelling warm air, which was heated as a result of absorbing heat generated by the electromotor and the gear set during the operation of the tool, out of the housing (2; 12; 22; 32), and a warm air channel (7; 17; 27; 37) arranged downstream of the electromotor and the gear set and spaced from a tool handle (3; 13; 23; 33) and having a plurality of blow-out openings (8; 18; 28; 38) arranged in such a way that during use of the hand-held tool, the expelled warm air flows in a direction away from the tool operator.
摘要:
An auxiliary handle is attachable by a band-shaped clamping member of a clamping device to a housing part of a hand tool such as a drill. A bearing part, supportable on the housing part, has alignable through openings for an axially extending depth stop. A U-shaped separate part is in engagement with the clamping member and has a through guide alignable with the through openings. When the clamping member is tightened on the housing part, it displaces the separate part transversely of the axis of the through opening for clamping the depth stop in the through openings.
摘要:
A rotor (100) for an electric motor (1000). The rotor (100) has a rotor shaft (10) and a rotor core (20) attached onto the rotor shaft (10). The rotor core has a plurality of core laminations (40, 140) arranged along an axis (A) of the rotor core (20), and has a plurality of poles of at least one pole pair, the core lamination (40, 140) having:a central recess (70, 170) through which the rotor shaft (10) passes and which has a contour (71, 171) as well as adjacent areas (AF), and a plurality of receiving structures arranged at peripheral angular positions in order to each form a receiving element for a pole-forming element on the rotor core (20). In this context, it is provided according to the invention that the rotor core has a surface (OF) facing the rotor shaft (10) that is formed together with the adjacent areas (AF) of the central recess (70, 170) of the plurality of core laminations (40, 140), and that has uneven areas crosswise to the axis (A) of the rotor core (20) that are formed by the contours (71, 171) of the central recesses (70) of the plurality of core laminations (40, 140). The contours (71, 171) of the central recesses (70, 170) of at least a first core lamination and a second core lamination of the plurality of core laminations (40, 140) are arranged so as not to be congruent with each other.
摘要:
A rotor (3) for a permanent magnet motor has a is rotatable around an axis of rotation (A) and has a plurality of axially extending permanent magnets (6) which are offset circumferentially in a symmetrical manner and arranged, respectively, in receptacles (16) of a yoke (7) which is assembled from axially stacked sheet lamellas (10), with the sheet lamellas (10) each having a coaxial inner hole (9), at least a first recess (8a) which is open toward the inner hole (9), and one second recess (8b) which is closed toward the inner hole (9), and with the lamellas being formed in a rotationally symmetrical manner so as to be offset at least by a phase angle, with at least two sheet lamellas (10) being oriented so as to be offset relative to one another by half of the phase angle.
摘要:
A rotor (3) for a permanent magnet motor has a is rotatable around an axis of rotation (A) and has a plurality of axially extending permanent magnets (6) which are offset circumferentially in a symmetrical manner and arranged, respectively, in receptacles (16) of a yoke (7) which is assembled from axially stacked sheet lamellas (10), with the sheet lamellas (10) each having a coaxial inner hole (9), at least a first recess (8a) which is open toward the inner hole (9), and one second recess (8b) which is closed toward the inner hole (9), and with the lamellas being formed in a rotationally symmetrical manner so as to be offset at least by a phase angle, with at least two sheet lamellas (10) being oriented so as to be offset relative to one another by half of the phase angle.