WO2017100872A1 - Sistema de molas para altas cargas de trabalho - Google Patents
Sistema de molas para altas cargas de trabalho Download PDFInfo
- Publication number
- WO2017100872A1 WO2017100872A1 PCT/BR2015/050255 BR2015050255W WO2017100872A1 WO 2017100872 A1 WO2017100872 A1 WO 2017100872A1 BR 2015050255 W BR2015050255 W BR 2015050255W WO 2017100872 A1 WO2017100872 A1 WO 2017100872A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- springs
- spring
- pair
- spring member
- high working
- Prior art date
Links
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000005381 potential energy Methods 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004210 cathodic protection Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011089 mechanical engineering Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/087—Units comprising several springs made of plastics or the like material
- F16F3/0873—Units comprising several springs made of plastics or the like material of the same material or the material not being specified
- F16F3/0876—Units comprising several springs made of plastics or the like material of the same material or the material not being specified and of the same shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
- E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
- E21B17/1028—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs with arcuate springs only, e.g. baskets with outwardly bowed strips for cementing operations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
Definitions
- the present invention relates to spring systems for use in subsea applications and in oil and gas equipment design. More specifically, the present invention relates to spring systems with similar topology mounting to that used in Belleville type springs.
- the springs according to the present invention are manufactured from composite materials, metallic materials or any other material that may be developed and thus can be applied to said springs.
- coil springs made of metallic materials are widely used in mechanical equipment. In the oil and gas field they are widely used in subsea hydraulic actuators, but require their immersion in oil to ensure corrosion resistance in marine environments. The application of these coil springs also requires the use of a pressure compensation system to provide their proper operation.
- Belleville springs also called Belleville washers, disc springs, conical springs, or Belleville washers were unveiled by JF Belleville in 1867 and at that time were a new type of spring with nonlinear workload to deformation.
- a feature of this class of springs is the high storage capacity of elastic potential energy with little deflection, thus allowing its application in projects that require small dimensions and may Also be used with different configurations, in series, parallel or in a double arrangement. These springs are also used to maintain high stresses in bolted applications such as commutators, compensating for different joint expansion rates and maintaining the required pressure. Examples of applications are in all fields of mechanical engineering, from subsea hydraulic actuators, application of the present invention, clutches and damping systems, to shoe dampers.
- the Belleville spring is conical in shape and is usually made of metallic materials. In the oil and gas area it is mainly used in subsea hydraulic actuators, in cases where a high level of elastic potential energy storage is required.
- these springs have some deficiencies such as weight, an increasingly important factor in the efficiency of project execution, susceptibility to corrosion and hydrogen embrittlement produced by cathodic protection.
- One solution is to keep them immersed in oil solution and isolated from the marine environment, as with coil springs, however these systems require pressure compensation to allow spring movement.
- Other problems are related to sealing and contamination systems when stored for long periods of time. Such solutions increase the size of the equipment and consequently the production and transportation costs.
- Belleville springs have great design flexibility and can be mounted in series in order to increase the allowable stroke as well as in parallel sets to increase the storage capacity of elastic potential energy for a same offset value. Belleville springs are also called plate springs, given their general circular shape. Similar to coil springs, they have the disadvantage of subject to corrosion and hydrogen embrittlement produced by cathodic protection. Several patent documents disclose such spring assemblies, some of which are cited below as an example.
- JPH1054432 (A) discloses an association of Belleville springs developed to solve problems related to the relative lateral movement between the springs that make up the association.
- said association provides disks provided with protrusions and grooves on oppositely symmetrical sides, as can be seen in Figure 4 of the document, in order to provide the correct mounting and fixing of the elements to each other.
- This association needs two cams to self-center the springs, which represents a difficulty of assembly and assembly.
- Document JPS62237129A also illustrates one type of mounting of these springs, but requires the presence of sleeves in the springs that are filled with a curved wire through which the force is transmitted.
- US201 1037210 (A1) describes conical shaped disc springs. These springs have a mounting feature in which a plurality of discs may be mounted in series or parallel and axially aligned. However, the mounting of a beam of these springs necessarily requires an auxiliary element which has the function of centering said springs in the series configuration so that they can be axially aligned.
- springs according to the present invention have completely different geometry and more suitable for production and operation with composite materials.
- a high workload spring system will comprise a self-centering pair of springs, a first cylindrical spring and a second double-bent cylindrical spring to allow a self-centering system in any and all mounting positions.
- a series-mounted, parallel-mounted Belleville-type spring system or any combination thereof said springs being preferably produced from composite materials which incorporate self-centering mechanisms and are suitably applied for operation with high workloads.
- the spring system according to the present invention is configured in at least one pair of components, comprising in its contact region double curvature and cam regions, which is responsible for the self-centering of the assembly.
- the mounting topology may be similar to those of Belleville springs, but differing from them in their geometry in that while a spring component is predominantly cylindrical in shape, the second spring component is cylindrical in shape.
- the spring system according to the present invention comprises a self-centering pair, a first spring being and a second double bend cylindrical spring to allow self-centering in all mounting positions.
- Figure 1 Front view of a pair of spring system components according to the present invention
- Figure 2 - front view of a spring-mounted spring system according to the present invention
- FIG. 3 - front view of a spring system according to the present invention mounted in parallel;
- FIG. 4 perspective view of the spring system illustrated in the assembly of Figure 2;
- Figure 5 Extended detail of the self-centering feature of the spring system components illustrated in Figure 2;
- the present invention provides a high workload spring system comprising at least one pair of springs (3) formed by a first spring member (1) and a second spring member (2).
- Said first spring component (1) and second spring component (2) have similar topology to Belleville springs, but differing in their geometry.
- the spring member (1) has predominantly cylindrical geometry, while the spring member (2) has pierced cylindrical geometry.
- a first central contact region (4) is obtained between said first spring component (1) and second spring component (2), which allow self-centering of components (1) and (2). .
- the spring system according to the present invention may be mounted, for example, as shown in Figures 2 and 4, in a series configuration.
- a series mounting system there are two pairs of springs (3), a first pair of springs comprising a first spring member (1) and a second spring member (2), said first pair of springs being mounted. contiguously, i.e. in series, with a second pair of springs comprising a first spring member (1a) and a second spring member (2a).
- the spring system of the present invention may further be mounted, for example, as shown in Figure 3, in a parallel configuration.
- a parallel mounting system there is a first set of parallel mounted spring components (1, 1a) which form a first pair of springs (7a) with a second set of spring components (2, 2a). ) also mounted in parallel.
- said The first pair of springs (7a) can thus be mounted in a series configuration with a second pair of springs (7b), thereby providing the same contact region characteristics (5) across double bend and shoulder areas so that the together obtain the self-centering feature, thereby preventing relative transverse movements between said first spring pair (7a) and second spring pair (7b) via a coupling (6).
- the parallel mounting system according to Figure 3 described above is especially suitable for use to increase the maximum force of the spring system according to the present invention for the same deformation.
- the present invention provides two manufacturing concepts for the high workload springs described above, as illustrated in Figure 6.
- the composite laminate (10) is manufactured by any known process; but it must be such as to provide a central hole (20) for the passage of the rod of a hydraulic actuator.
- said spring should be manufactured by means of two laminates (30, 40) joined by a die (50, 60) to provide a hole (70) for the passage of a hydraulic actuator stem.
- the spring of the spring system according to the present invention can be fabricated using various manufacturing methodologies. Peek matrix and carbon fiber composite material is preferred, but not limited to, when the use of the spring system is directed to the underwater environment. Thus, other materials may be used, including metallic materials.
- the use of the spring system according to the present invention in subsea actuators will allow the cost reduction of equipment design by reducing the size of the submarine Christmas tree blocks, as well as a consequent increase of equipment reliability. with its simplification.
- the spring system object of the present invention has been designed for use in subsea equipment for the storage of elastic potential energy for the actuation of subsea valves through hydraulic actuators.
- such an application is not unique, since the spring system according to the present invention can be used for energy storage in any type of subsea or even surface equipment in the oil and gas area, as well as in other general application areas of mechanical engineering.
- the spring geometry of the spring system of the present invention confers an important feature related to the fact that it is self-centering, which is an extra advantage over Belleville type springs of the state of the art, which do not have this feature.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112018007967-7A BR112018007967B1 (pt) | 2015-12-14 | Sistema de molas para altas cargas de trabalho | |
US16/061,832 US10808787B2 (en) | 2015-12-14 | 2015-12-14 | Spring system for high workloads |
PCT/BR2015/050255 WO2017100872A1 (pt) | 2015-12-14 | 2015-12-14 | Sistema de molas para altas cargas de trabalho |
EP15823125.8A EP3392519A1 (en) | 2015-12-14 | 2015-12-14 | Spring system for high workloads |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/BR2015/050255 WO2017100872A1 (pt) | 2015-12-14 | 2015-12-14 | Sistema de molas para altas cargas de trabalho |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017100872A1 true WO2017100872A1 (pt) | 2017-06-22 |
Family
ID=55083258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2015/050255 WO2017100872A1 (pt) | 2015-12-14 | 2015-12-14 | Sistema de molas para altas cargas de trabalho |
Country Status (3)
Country | Link |
---|---|
US (1) | US10808787B2 (pt) |
EP (1) | EP3392519A1 (pt) |
WO (1) | WO2017100872A1 (pt) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62237129A (ja) | 1986-04-05 | 1987-10-17 | ベ−ベ−ツエ−・アクチエンゲゼルシヤフト・ブラウン・ボバリ・ウント・シ− | 皿ばね組立体 |
DE3716680A1 (de) * | 1987-05-19 | 1988-12-01 | Joachim Dipl Ing Jahnke | Tellerfeder aus kunststoff mit besonderen daempfungseigenschaften als funktionsintegrierte federdaempferbaueinheit |
US5390903A (en) * | 1993-09-03 | 1995-02-21 | Connell Limited Partnership | Variable force die spring assembly |
JPH1054432A (ja) | 1996-05-27 | 1998-02-24 | Okuma Mach Works Ltd | 皿ばね列 |
WO2002026486A2 (en) * | 2000-09-28 | 2002-04-04 | Lord Corporation | Composite shims having a laminate structure |
US20110037210A1 (en) | 2009-08-13 | 2011-02-17 | Rode John E | Stackable belleville spring |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2162719A (en) * | 1938-06-14 | 1939-06-20 | Matilda K Hay | Combination spring bellows control device |
US2534123A (en) * | 1944-05-04 | 1950-12-12 | Cook Electric Co | Method of making metal bellows |
US2432717A (en) * | 1944-08-16 | 1947-12-16 | Cons Vuitee Aircraft Corp | Washer type compression spring with tubular or sheathlike elastic covering |
US2939663A (en) * | 1956-03-28 | 1960-06-07 | Bergen Pipesupport Corp | Constant support device |
US3759351A (en) * | 1971-07-12 | 1973-09-18 | Nash Bros Co | Frangible energy absorbing bumper mounting device |
US5072917A (en) * | 1987-05-21 | 1991-12-17 | Pleva Walter F | Uniform loading springs of improved configuration |
US7195235B2 (en) * | 2002-01-22 | 2007-03-27 | Rode John E | Adjustable disc spring systems and methods |
US6669184B2 (en) * | 2002-05-29 | 2003-12-30 | Visteon Global Technologies, Inc. | Composite wave ring spring |
DE10226266B4 (de) * | 2002-06-07 | 2005-09-15 | Ks Gleitlager Gmbh | Gleitlagerverbundwerkstoff |
US8821510B2 (en) * | 2009-04-15 | 2014-09-02 | Cook Medical Technologies Llc | Flexible sheath with polymer coil |
-
2015
- 2015-12-14 US US16/061,832 patent/US10808787B2/en active Active
- 2015-12-14 WO PCT/BR2015/050255 patent/WO2017100872A1/pt active Application Filing
- 2015-12-14 EP EP15823125.8A patent/EP3392519A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62237129A (ja) | 1986-04-05 | 1987-10-17 | ベ−ベ−ツエ−・アクチエンゲゼルシヤフト・ブラウン・ボバリ・ウント・シ− | 皿ばね組立体 |
DE3716680A1 (de) * | 1987-05-19 | 1988-12-01 | Joachim Dipl Ing Jahnke | Tellerfeder aus kunststoff mit besonderen daempfungseigenschaften als funktionsintegrierte federdaempferbaueinheit |
US5390903A (en) * | 1993-09-03 | 1995-02-21 | Connell Limited Partnership | Variable force die spring assembly |
JPH1054432A (ja) | 1996-05-27 | 1998-02-24 | Okuma Mach Works Ltd | 皿ばね列 |
WO2002026486A2 (en) * | 2000-09-28 | 2002-04-04 | Lord Corporation | Composite shims having a laminate structure |
US20110037210A1 (en) | 2009-08-13 | 2011-02-17 | Rode John E | Stackable belleville spring |
Also Published As
Publication number | Publication date |
---|---|
BR112018007967A2 (pt) | 2018-10-30 |
EP3392519A1 (en) | 2018-10-24 |
US20180363722A1 (en) | 2018-12-20 |
US10808787B2 (en) | 2020-10-20 |
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