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Screw element, screw connection and method for producing screw element

A technology of threaded parts and screws, which is applied in the direction of connecting components, threaded fasteners, screws, etc., can solve the problems of uncompensated errors, damaged helix, and loose screws, etc., and achieve the effect of simplifying manufacturing

Inactive Publication Date: 2012-02-15
哈特马特.弗莱格
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The problem with traditional screws with a single external thread segment is that the screw can loosen over time, for example due to vibrations in the operation of the equipment on which the screw is used, etc.
In addition, these known screw parts tend to squeeze, thereby damaging the helix
In addition, with these known screw parts it is not possible to compensate for machining-induced tolerances in the internal threaded part, as a result of which, depending on the tolerance (oversize or undersize), no braking torque at all, or braking Torque exceeds the maximum allowable value

Method used

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  • Screw element, screw connection and method for producing screw element
  • Screw element, screw connection and method for producing screw element
  • Screw element, screw connection and method for producing screw element

Examples

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Embodiment Construction

[0044] In the drawings, the same parts and parts with the same function are denoted by the same symbols.

[0045] figure 1 Indicates part of the screw part 1. The screw part 1 comprises a shaft 2 which has a first external thread section 3 with a first external thread 4 on the end side. The second external thread section 5 is axially adjacent to the first external thread section 3 and is provided with a second external thread 6 . The two external threads 4, 6 are identical, ie they have the same course of the helix, the same pitch and the same thread size.

[0046] Depend on figure 1 It can be seen that the diameters (thread inner diameter and thread outer diameter) of the two external thread segments 3, 5 are consistent. Both externally threaded sections 3 , 5 are made on the integral rod 2 and are connected to each other (in one piece) by a cylindrical connecting section 7 . The connecting section 7 has a smaller diameter than the externally threaded sections 3, 5, wher...

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PUM

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Abstract

The invention relates to a method for producing a screw element (1) having a first outside thread section (3) and having a second outside thread section (5), wherein the first and the second outside thread sections (3, 5) are positioned relative to one another such that a braking torque results upon screwing the two outside thread sections (3, 5) together with an inside thread element (13). According to the invention, the outside thread sections (3, 5) are positioned in the axial direction and / or in the circumferential direction by a defined relative adjustment of said outside thread sections(3, 5).

Description

technical field [0001] The invention relates to a method for producing a screw part according to the preamble of claim 1, a screw part according to claim 7 comprising a first external thread section and a second external thread section, and a screw part according to claim 7 The threaded connection of claim 16 . Background technique [0002] A problem with conventional screws having a single external thread segment is that the screw may loosen over time, for example due to vibrations during operation of the equipment in which the screw is used. This can lead to consequences that are important to safety. [0003] In addition to the above-mentioned simple screws, so-called safety screws designed as screws with different threads are also known. Screws with different threads can firmly clamp the component, wherein a braking torque is produced when the screw is tightened with the female part, which ensures the safety function. The development of the braking torque is due to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/38
CPCF16B39/38F16B39/284
Inventor W.K.W.霍尔舍
Owner 哈特马特.弗莱格
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