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US 12,580,447 B2Granted
Electromechanical spindle drive
AssigneeTRUMPF Maschinen Austria GmbH & Co. KG.
InventorStefano Speziali
Life of this patent
Estimating the term…
Abstract
An electromechanical spindle drive includes a housing, a motor, a rotational part in the form of a spindle nut, the rotational part being rotated by the motor about a rotational axis, a spindle which interacts with the rotational part, the threaded section of which is arranged within the rotational part and which exits the rotational part at a spindle outlet end, and bearings by means of which the rotational part is rotatably mounted relative to the housing, wherein at least one, preferably at least two of the bearings, are arranged in the region of the spindle outlet end of the rotational part and/or are designed in the form of a radial bearing.
Claims34
An electromechanical spindle drive comprising:
- a housing,
- a motor,
- a rotational part comprising a spindle nut, wherein the rotational part is rotatable by the motor about a rotational axis,
- a spindle interacting with the rotational part and comprising a, threaded section arranged within the rotational part and exiting the rotational part at a spindle outlet end, and
- a plurality of bearings rotatably mounting the rotational part relative to the housing,
- wherein a bearing of the plurality of bearings is arranged in a region of the spindle outlet end of the rotational part, inside the rotational part and on an inner side of the rotational part.
3 more elements
An electromechanical spindle drive comprising:
- a housing,
- a motor,
- a rotational part comprising a spindle nut, wherein the rotational part is rotatable by the motor about a rotational axis,
- a spindle interacting with the rotational part and comprising a threaded section arranged within the rotational part and exiting the rotational part at a spindle outlet end,
- a plurality of bearings rotatably mounting the rotational part relative to the housing, and
- a rolling spindle drive in which rolling elements are guided in a circulating path,
- wherein a first portion of the circulating path is formed between an internal thread of the rotational part and an external thread of the spindle and a second portion of the circulating path is formed by a return channel, formed in an interior of the spindle.
4 more elements
An electromechanical spindle drive comprising:
- a housing,
- a motor,
- a rotational part comprising a spindle nut, wherein the rotational part is rotatable by the motor about a rotational axis,
- a spindle interacting with the rotational part and comprising a threaded section arranged within the rotational part and exiting the rotational part at a spindle outlet end,
- a plurality of bearings rotatably mounting the rotational part relative to the housing, and
- an attachment part at an end of the rotational part opposite the spindle outlet end and connected to the rotational part,
- wherein a portion of the attachment part located outside the rotational part is formed in a shape of a pin,
- wherein a longitudinal axis of the portion of the attachment part formed in the shape of the pin coincides with the rotational axis of the rotational part.
5 more elements
An electromechanical spindle drive comprising:
- a housing,
- a motor,
- a rotational part comprising a spindle nut, wherein the rotational part is rotatable by the motor about a rotational axis,
- a spindle interacting with the rotational part and comprising a threaded section arranged within the rotational part and exiting the rotational part at a spindle outlet end,
- a plurality of bearings rotatably mounting the rotational part relative to the housing,
- an attachment part at an end of the rotational part opposite the spindle outlet end and connected to the rotational part, and
- a sensor device, wherein a portion of the attachment part located outside the rotation part is disposed in a detection range of the sensor device.
4 more elements
An electromechanical spindle drive comprising:
- a housing,
- a motor,
- a rotational part comprising a spindle nut, wherein the rotational part is rotatable by the motor about a rotational axis,
- a spindle interacting with the rotational part and comprising a threaded section arranged within the rotational part and exiting the rotational part at a spindle outlet end,
- a plurality of bearings rotatably mounting the rotational part relative to the housing,
- an attachment part at an end of the rotational part opposite the spindle outlet end and connected to the rotational part, and
- a lubricant channel is configured in the attachment part for supplying lubricant to an interior of the rotational part.
4 more elements
An electromechanical spindle drive comprising:
- a housing,
- a motor,
- a rotational part comprising a spindle nut, wherein the rotational part is rotatable by the motor about a rotational axis,
- a spindle interacting with the rotational part and comprising a threaded section arranged within the rotational part and exiting the rotational part at a spindle outlet end,
- a plurality of bearings rotatably mounting the rotational part relative to the housing,
- an attachment part at an end of the rotational part opposite the spindle outlet end and connected to the rotational part, and
- a braking device surrounding the attachment part.
4 more elements
An electromechanical spindle drive comprising:
- a housing,
- a motor,
- a rotational part comprising a spindle nut, wherein the rotational part is rotatable by the motor about a rotational axis,
- a spindle interacting with the rotational part and comprising a threaded section arranged within the rotational part and exiting the rotational part at a spindle outlet end,
- a plurality of bearings rotatably mounting the rotational part relative to the housing,
- an attachment part at an end of the rotational part opposite the spindle outlet end and connected to the rotational part, and
- a braking device having a brake disc that rotates with the rotational part and a braking element that can be adjusted in an axial direction and acts on the brake disc in a braking position,
- wherein the brake disc has
- an inner area,
- a friction surface area extending annularly around the rotational axis with a first friction surface formed on a first side of the brake disc, and
- an intermediate area extending between the friction surface area and the inner area around the rotational axis, and
- wherein a first mating surface is formed on the braking element, which first mating surface faces the first friction surface and interacts with the first friction surface in the braking position.
9 more elements
Dependencies are inferred from the claim text.