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Non-positive clamping connection and method for its production

A technology for clamping connections and clamping elements, applied in the direction of connection members, friction-clamped detachable fasteners, connections, etc., which can solve the problem of reduced friction coefficient, surface roughness, loosening of clamped connections, and reduced coating. And other issues

Inactive Publication Date: 2009-01-07
ELLERGON ANTRIEBSTECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, these measures have the disadvantage that in the event of loosening and re-clamping of the clamped connection, in the event of dynamic stresses or in the event of sliding of the clamping surfaces, the coefficient of friction is reduced due to a reduction in the surface roughness or removal of the coating

Method used

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  • Non-positive clamping connection and method for its production
  • Non-positive clamping connection and method for its production
  • Non-positive clamping connection and method for its production

Examples

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Embodiment Construction

[0034] Embodiment Example 1 demonstrates a method for transmitting a transverse force F between two flanges 1 and 2 Q Press-fit clamp connections. The two flanges 1 and 2 are pressed against each other via respective metal clamping surfaces 3 and 4 and are clamped together by a clamping element 5 , here designed as a bolt 6 with a nut 7 .

[0035] Prestress F of clamping element 5 V The selection method is to make the adhesion effect between the clamping surfaces 3 and 4 take effect, the resulting normal force F N and the transmitted lateral force F Q The following conditions:

[0036] f N ·μ>·F Q

[0037] The higher the coefficient of friction μ, the transmissible lateral force F Q bigger. Thus, according to the invention, one of the clamping surfaces 3 or 4 has an increased surface roughness compared to conventional clamping surface pairs, in order to obtain a fine surface structure comprising microreliefs and microdepressions. This structure with increased roughnes...

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PUM

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Abstract

The present invention relates a force-fitting clamping connection comprising a first metal clamping surface (3), a second metal clamping surface(4), and a clamping element (5) for clamping the clamping surfaces (3, 4) against one another. The first clamping surface forms a hardened fine surface structure with microreliefs and microdepressions. The second clamping surface (4) has a lower hardness than the first clamping surface (3). Preferably, the first clamping surface is surface-treated by sand-blasting, shot-blasting or embossing before the hardening operation. This allows permanently high friction values between the clamping surfaces (3, 4). Also the present invention relates a flange connection comprising such a clamping connection for transmitting high torques, and also a production method.

Description

technical field [0001] The invention relates to a press-fit clamping connection comprising a first metal clamping surface, a second metal clamping surface and a clamping element for clamping the clamping surfaces to each other. The invention also relates to a process for the preparation of the corresponding products. Background technique [0002] It is known from the prior art that the clamping elements of such clamping connections are designed as screws. In order to prevent shear stress on the screws, such clamping connections are usually designed in such a way that the clamping surfaces of the elements to be connected are fixed to each other by static friction. [0003] When a screw connection is tightened with a predetermined tightening torque, a prestress is created under the screw head, which in turn creates friction between the elements to be connected. As long as the transmission force between the elements is smaller than the frictional force, the above elements can...

Claims

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Application Information

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IPC IPC(8): F16B39/02
CPCF16B39/282F16B2/005F16B5/02F16B37/00Y10T403/75Y10T403/76Y10T29/49966Y10T403/7123F16B2/02F16B2/00F16B2200/506
Inventor 科尼利厄斯盖斯林格马提亚盖斯林格科里斯托福辛格尔科尼利厄斯 盖斯林格马提亚 盖斯林格科里斯托福 辛格尔
Owner ELLERGON ANTRIEBSTECHN
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