Adjustable levelling pad

Patent metadata

Field	Value
Publication number	US-2022243861-A1
Application number	US-202217582254-A
Country	US
Kind code	A1
Filing date	Jan 24, 2022
Priority date	Jan 29, 2021
Publication date	Aug 4, 2022
Grant date	—

Abstract

An adjustable levelling pad includes a first component provided with first screw threads, a second component provided with second screw threads cooperating with the first screw threads of the first component and a third component having a bearing surface cooperating with the first component. The thread entrance angle of the second screw threads of the second component is less than 35°.

First claim

What is claimed is:

1 . An adjustable levelling pad comprising:
a first component provided with first screw threads; a second component provided with second screw threads cooperating with the first screw threads of the first component; and a third component having a bearing surface cooperating with the first component, wherein the thread entrance angle of the second screw threads of the second component is less than 35°.

2 . The adjustable levelling pad according to claim 1 ,
wherein the thread entrance angle of the second screw threads of the second component is equal to 30°.

3 . The adjustable levelling pad according to claim 1 ,
wherein the thread start angle of the first screw threads of the first component is greater than 40°.

4 . The adjustable levelling pad according to claim 1 ,
wherein the thread start angle of the first screw threads of the first component is equal to 45°.

5 . The adjustable levelling pad according to claim 1 , wherein a length of the thread start angle of the first screw threads of the first component is less than or equal to 1.5 mm.

6 . The adjustable levelling pad according to claim 1 , wherein a length of the thread entrance angle of the second screw threads of the second component is less than 1 mm.

7 . The adjustable levelling pad according to claim 1 , wherein a length of the thread entrance angle of the second screw threads of the second component equal to 0.866 mm.

8 . The adjustable levelling pad according to claim 1 , wherein a ratio between an outer diameter of the first component and an outer diameter of the second component is between 0.81 and 0.96.

9 . The adjustable levelling pad according to claim 1 ,
wherein the first component includes a first portion and a second portion, the second portion having an outer diameter greater than the outer diameter of the first portion, the first portion having the first screw threads.

10 . The adjustable levelling pad according to claim 9 , wherein an outer diameter of the third component is greater than the outer diameter of the first portion of the first component.

11 . The adjustable levelling pad according to claim 1 ,
including a protection cap fastened to the first component and extending towards the second component, the protection cap at least partially surrounding the second component and being configured to cooperate in a sealing manner with the second component.

12 . The adjustable levelling pad according to claim 1 ,
including a mechanical limiter fastened to the outer circumference of the first component and configured to abut axially against a shoulder on an inner wall of the second component when the first component is unscrewed from the second component.

13 . The adjustable levelling pad according to claim 1 , wherein the adjustable pad comprises C45 carbon steel.

14 . The adjustable levelling pad according to claim 1 ,
wherein the first component has a first width, and wherein the second component has a second width greater than the first width.

15 . The adjustable levelling pad according to claim 1 ,
wherein the first component has a cylindrical side wall and a first diameter, wherein the second component has a cylindrical side wall and a second diameter greater than the first diameter.

16 . The adjustable levelling pad according to claim 1 , including:
a protection cap fastened to the first component and extending towards the second component, the protection cap at least partially surrounding the second component and being configured to cooperate in a sealing manner with the second component; and a mechanical limiter fastened to the outer circumference of the first component and configured to abut axially against a shoulder on an inner wall of the second component when the first component is unscrewed from the second component.

17 . An assembly comprising:
a piece of machinery; a support; and an adjustable levelling pad according to claim 16 located between the piece of machinery and the support with a top surface of the third component in contact with the piece of machinery and a bottom surface of the second component in contact with the support.

18 . An assembly comprising:
a piece of machinery; a support; and an adjustable levelling pad according to claim 1 located between the piece of machinery and the support with a top surface of the third component in contact with the piece of machinery and a bottom surface of the second component in contact with the support.

Assignees

• Skf Ab

Inventors

• Hooghart Abraham Hendrik
• Vermeulen Rene

Classifications

• F16B43/001

  for sealing or insulation · CPC title

• F16M11/04 Primary

  Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand · CPC title

• F16B43/00

  Washers or equivalent devices; Other devices for supporting bolt-heads or nuts (circlips F16B21/18; {for indicating tensile load F16B31/02; forming a whole with the bolt or nut F16B33/00; locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates F16B39/10, F16B39/24}) · CPC title

• F16B13/04

  with parts gripping in the hole or behind the reverse side of the wall after inserting from the front ({F16B13/002 and F16B13/12 take precedence;} friction-grip releasable fastenings in general F16B2/00) · CPC title

• F16M7/00 Primary

  Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks (elastic or equivalent mounting for absorbing vibrations F16F, especially F16F15/04) · CPC title