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Spindle for threaded drive and threaded drive having such spindle

A driving device, screw nut technology, applied in transmission devices, belts/chains/gears, mechanical equipment, etc., can solve problems such as the influence of elastic deformability adjustment device dynamic characteristics, thread wear, etc., to achieve wear minimization, high dynamic effect

Pending Publication Date: 2020-12-08
PRECITEC GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The known screw drives have the disadvantage that the elastic deformability of the spring element has an influence on the dynamic behavior of the adjusting device
[0008] This has the disadvantage that due to the high spring force provided by the spring element, there is a high frictional force between the thread of the spindle and the thread of the spindle nut, especially on the flanks of the thread contours.
However, higher friction leads to increased wear of the threads

Method used

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  • Spindle for threaded drive and threaded drive having such spindle
  • Spindle for threaded drive and threaded drive having such spindle
  • Spindle for threaded drive and threaded drive having such spindle

Examples

Experimental program
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Embodiment Construction

[0045] In the following, the same reference numerals are used for identical or identically acting elements, unless otherwise stated.

[0046] figure 1 A lead screw according to one embodiment of the invention is shown. The screw 10 includes a first screw part 12 and a second screw part 14 . The first screw part 12 and the second screw part 14 preferably have the same diameter.

[0047] The first screw part 12 has a first threaded part 16 and the second screw part 14 has a second threaded part 18 . The first threaded portion 16 and the second threaded portion 18 together form the thread of the lead screw 10, which cooperates with the thread of the lead screw nut (not shown) so that the lead screw 10 can be screwed into or out of the lead screw nut. Unscrew the screw nut. The first threaded part 16 is arranged on the threaded region 24 of the first spindle part 12 . The second threaded part 18 is arranged on the threaded region 26 of the second spindle part 14 . The first ...

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PUM

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Abstract

A spindle for a threaded drive, in which the spindle comprises: a first spindle portion having a first threaded portion and a second spindle portion having a second threaded portion, in which the first threaded portion and the second threaded portion together form threads of the spindle; a fixing device, wherein the first spindle portion and the second spindle portion are designed in such a way that a distance between the first spindle portion and the second spindle portion along the axis of rotation of the spindle can be adjusted in order to adjust a misalignment between the first threaded portion and the second threaded portion, and wherein the fixing device is set so that the first spindle portion and the second spindle portion are fixed at the adjusted distance. A thread drive having such a spindle and a spindle nut and an adjusting device having such a thread drive are also disclosed.

Description

technical field [0001] The invention relates to a lead screw for a screw drive. The invention also relates to a screw drive with such a spindle. The invention also relates to an adjustment device for moving a movable part, said adjustment device comprising such a screw drive. Background technique [0002] A threaded drive or threaded screw is an element that converts a rotational movement, for example of a shaft of a motor, into a linear movement. Screw drives are used in particular as adjustment elements for linear drives, which must have particularly high positioning accuracy. Threaded drives usually have a lead screw and a lead screw nut. The lead screw can also be called a screw. Lead screw nuts can also be called threaded nuts. [0003] Lead screw nuts are used to fasten objects to be driven linearly, such as slides or supports. One application is, for example, in the field of optics, in particular focusing optics, for laser processing systems which have to be mov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H25/20F16H25/24
CPCF16H25/2003F16H25/24F16H2025/2481
Inventor P·舒伯特
Owner PRECITEC GMBH
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