EP1151236B1 - Vorrrichtung zur verringerung des rückstosses mit bremse, bremskompensator und rohrvorholer - Google Patents

Vorrrichtung zur verringerung des rückstosses mit bremse, bremskompensator und rohrvorholer Download PDF

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Publication number
EP1151236B1
EP1151236B1 EP00905119A EP00905119A EP1151236B1 EP 1151236 B1 EP1151236 B1 EP 1151236B1 EP 00905119 A EP00905119 A EP 00905119A EP 00905119 A EP00905119 A EP 00905119A EP 1151236 B1 EP1151236 B1 EP 1151236B1
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EP
European Patent Office
Prior art keywords
piston
chamber
cavity
subsidiary
principal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00905119A
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English (en)
French (fr)
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EP1151236A1 (de
Inventor
Bruno Thomson-CSF Pro. Int. Dép. Brev. BOISSIERE
Eric Thomson-CSF Pro. Int. Dép. Brev. METROZ
Jean-Marie Thomson-CSF P.I. Dép. Brev. POUSSARD
Pascal Thomson-CSF P.I. Dép. Brev. RONDET
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDA Armements SAS
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TDA Armements SAS
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Publication date
Application filed by TDA Armements SAS filed Critical TDA Armements SAS
Publication of EP1151236A1 publication Critical patent/EP1151236A1/de
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Publication of EP1151236B1 publication Critical patent/EP1151236B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes
    • F41A25/16—Hybrid systems
    • F41A25/20—Hydropneumatic systems

Definitions

  • the present invention relates to anti-recoil devices for guns and mortars and more specifically the anti-recoil devices that comprise a parking brake and, associated with this brake, a compensator and a recuperator.
  • German Patent DE 103 975 of the August 18, 1898 offers an anti-recoil device where a brake equipped with a compensator plays, in addition to its role of brake, a role of recuperator.
  • the device according to this patent can be described as being an anti-recoil device which includes a firing brake serving as recuperator and a compensator coupled to the brake by a conduit, the brake having a main cavity, a main piston pierced with holes and a main rod with an integral end of the piston and one end out of the cavity, the piston forming a barrier imperfect which subdivides the cavity into a small chamber in which passes the rod and a large chamber, the compensator having an auxiliary cavity, a sealed auxiliary piston, for delimit a secondary chamber in the annex cavity, and a system booster which acts on the auxiliary piston to tend to reduce the volume of the annex chamber, the device having its main cavity and its annex chamber filled with liquid, the conduit connecting between they the small room and the annex room and the system being intended to be used with the small room that increases volume during the recoil.
  • the adjoining chamber is not in direct contact with the conduit but via channels drilled in a fixed piston; the piston appendage slides between the fixed piston that surrounds and the side walls the surrounding cavity surrounding it; speed reduction is obtained through valves that close, but that in part, the channels when returning.
  • the assembly formed of the auxiliary piston and the fixed piston with its channels and its support, is complicated to realize, expensive and relatively fragile.
  • the present invention aims to avoid these disadvantages.
  • FIG. 1 is a schematic longitudinal sectional view a reverse brake.
  • This brake comprises a cavity 1 filled with a liquid 4, a piston 2 which can move in a direction XX in the cavity and a rod 3 secured to the piston; the liquid 4 is usually oil.
  • the cavity has a longitudinal axis XX parallel to the firing direction of the weapon system considered; this cavity is of constant section, generally circular.
  • the stem is parallel to the direction XX and has its first end attached to the piston; it crosses the floor of the cavity through an opening whose watertightness is provided by a seal, so as to have its second end off of the cavity and to allow a displacement of the piston in the cavity, without loss of liquid.
  • the piston defines two chambers in the cavity; these rooms are usually called small room for that, 11, located on the same side of the piston 2 as the rod 3 and large for the other, 12.
  • the piston is pierced with holes, such as hole 20, the dimensions are calibrated to ensure the braking intensity desired: the smaller the total cross section of these holes, the smaller the resistance to fluid exchange between the two chambers is big.
  • the brakes can be used in four configurations different depending on whether the fire tube is attached to the rod or the wall of the cavity and that, during the recoil, the displacement of the stem relative to the cavity causes a decrease in the volume of the small room or an increase of this volume.
  • Figures 2a at 2d illustrate these four configurations in simplified diagrams where the cavity 1 is drawn in section so as to show the piston 2 and 3.
  • the cavity 1 is fixed and the recoil leads to a reduction in the volume of the small room; the stem 3 works in traction.
  • the rod 3 is also fixed but hindsight increases the volume of the small chamber; the stem 3 then works in compression.
  • Figure 3 shows how a compensator can be associated with a brake of the type of the one that has been described in Figure 1, to compensate for these variations in volume and, at the same time, compensate for changes in the volume of liquid due to thermal expansion.
  • the assembly according to FIG. 3 comprises a brake similar to that of Figure 1 except that it has an opening, A, in the wall of the cavity 1 in the vicinity of that of the two ends of the cavity which is located in the big room.
  • This set includes also an auxiliary cavity 1 ', of longitudinal axis YY parallel to XX; a piston 2 'can slide in this cavity, where, with the help of a seal 20 ', it constitutes a tight barrier between one side a clearing house 13 and on the other side a room Annex 14.
  • the clearing house is filled with the same liquid, 4, that the cavity 1 with which it is in communication through opening A.
  • Annex room 14 is in communication with the amblant atmosphere by a hole V; this annex room serves as housing with a coil spring, R; this spring that creates pressure to inside the clearing chamber 13, absorbs, by action on the piston 2 ', the volume variations of the compensation chamber 13.
  • the annex chamber 14 may be without communication with the outside atmosphere and the spring can be replaced by a gas under pressure or the spring R can be located in the chamber of compensation and work in traction.
  • the annex cavity 1 has its axis YY parallel to the axis XX of the cavity 1; it can even be in direct mechanical connection with the cavity 1 only by a duct which, like the opening A according to the figure 3, would communicate the large room and the room of compensation.
  • the replacement in initial position of fire of a fire tube, after firing an ammunition and retreating during that shot, is usually provided by a hydro-pneumatic recuperator; the role of the recuperator is to store some of the energy of recoil for, then, to restore it in order to bring the tube back to the position initial.
  • FIG. 4 is a diagram of an exemplary embodiment of a such recuperator. This figure shows two cavities 1a, 1b axes longitudinal X'X 'and Y'Y' and constant sections; these cavities views in longitudinal section in FIG. 4 are joined together by a leads W near their first end; the first ends of the cavities 1a and 1b are closed while only the second end of the cavity 1b is closed.
  • the cavity 1a can slide a piston 2a integral with a rod 3a of axis parallel to the axis X'X '; the axis X'X 'must be parallel to the recoil direction of the fire tube which is not an obligation for the axis Y'Y 'which can make any angle with the direction of recoil of the fire tube.
  • the piston 2a is provided with a seal so as to constitute a tight barrier inside the cavity la; likewise the rod 3a passes through the first closed end of the cavity 1a by an orifice provided with a seal to seal the crossing.
  • a piston 2b can slide along the axis Y'Y '; this piston is provided with a seal so as to constitute a barrier between two chambers 15 and 16 which it delimits within this cavity.
  • the space between the pistons 2a, 2b and which includes the inside of the conduit W and the chamber 15 is filled with a liquid 4 while the chamber 16 between the piston 2b and the second end of the cavity 1b is filled with a gas under pressure and that the face of the piston 2a to the opposite of the rod 3a is to the pressure atmospheric; the liquid is usually oil and the gas of nitrogen.
  • the fire tube can be secured to either the rod 3 and then the cavities 1a, 1b are fixed, ie cavities 1a, 1b and the piston-rod assembly, 2a-3a, is fixed.
  • cavities 1a, 1b have been shown separately in FIG. is not an obligation, they could be joined like the two Brake cavities with compensator of Figure 3.
  • the gas under pressure of the cavity 16 can be replaced by a spring that works in compression during the recoil or by a spring in the cavity 15, this last spring working in traction during the recoil.
  • FIG. 5 is a longitudinal sectional view of a brake with compensator which is designed to play the role of recuperator.
  • this brake corresponds to the recuperator according to FIG. 4, in which the end of the cavity opposite to the stem would be obstructed, in which the piston 2a would be deliberately leakproof and in which the entire cavity 1a would be filled with liquid.
  • the brake thus constituted must have its stem who works in compression during the retreat, that is to say, be in one any of the configurations illustrated in Figures 2b, 2d; these configurations are those where the recoil has the effect of compressing the gas or the spring put in place of the gas or stretch the spring which has been said about figure 4 that it could be placed in chamber 15.
  • Figure 5 thus appear a main cavity 1 of axis XX, with a piston 2, a rod 3, a small chamber 11, a large chamber 12 and a secondary cavity 6 of axis YY, with a piston 60, a secondary chamber 61 in communication, by a orifice C, with the small chamber 11 and a compression chamber 62 filled with a pressurized gas 5.
  • the piston 2 is rendered leaky through holes such as 20.
  • control rod 7 in the large chamber 12 and a hollow part in the piston-rod assembly 2-3 next to the rod 7.
  • the rod 7 integral with the cavity 1 is profiled in truncated cone and penetrates more or less into the hollow part of the rod 3 according to the position of the piston 2 in the cavity 1.
  • This control rod assembly-hollow part constitutes a system classic to get the most constant brake pressure possible throughout the retreat.
  • a valve 21 provided with a return spring 22 in connection with the piston 2, a valve 21 provided with a return spring 22.
  • the valve is pierced with holes such as 210 which have a section of the order four times smaller than the holes such as 20 and the spring 22 tends to press the valve 21 on the piston 2.
  • holes such as 210 which have a section of the order four times smaller than the holes such as 20 and the spring 22 tends to press the valve 21 on the piston 2.
  • each hole such as 210 opens into a hole such as 20 and vice versa.
  • the valve 21 is pressed on the piston 2 as long as the pressure in the large chamber 12 is less than the pressure in the small chamber increased by the pressure exerted by the spring 21 on the valve; beyond that, the flap opens.
  • Figures 6a to 6d show the drawing of the brake with compensator of Figure 5 in a configuration according to Figure 2d that is to say with the fixed rod 3 and the movable cavities 1, 6; this is symbolized by a ground pin which bears the mark M1 in Figure 6a.
  • a rubber damper occupies a position fixed; it is symbolized by a rectangle supported on a ground stud.
  • Figure 6b shows the brake as it stands, during the recoil fire tube, in an intermediate position between the initial position and the maximum rear position.
  • An arrow D symbolizes the displacement of the cavities 1, 6 during the recoil; hindsight leads to a strong pressure increase in the large room 12 from where a opening of the valve 21 which allows a rapid passage of liquid from the large room to the small room 11; an arrow Dp symbolizes the flow of liquid through the piston 2.
  • the increase pressure in the large chamber causes: - a flow of liquid, symbolized by an arrow Dr, from the small chamber to the secondary chamber 61 - a push on the piston 60 that comes compressing the gas enclosed in the compression chamber 62.
  • cavities 1, 6 are in the position illustrated in Figure 6c with the valve 21 which closes; the pressure in the chamber of compression 62 is maximum and will therefore push the piston 60 and by there even cause a reflux of liquid which leads to a displacement cavities 1, 6 in which the length of the rod 3 located at the interior of the cavity 1 decreases.
  • Figure 6d shows the brake as it is when returning in initial position; the drawing corresponds to an intermediate position and, in this drawing, the displacements are symbolized by an arrow D ' for the cavities 1, 6 and by two arrows Dr 'and Dp' for the liquid; these three arrows correspond, but with opposite directions, respectively to the three arrows D, Dr and Dp according to Figure 6b.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)
  • Chairs Characterized By Structure (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Claims (3)

  1. Rückstoßhemmende Vorrichtung mit einer Schußbremse, die als Vorholer dient, und einem mit der Bremse durch eine Leitung (C) verbundenen Kompensator, wobei die Bremse einen Haupthohlraum (1), einen mit Löchern (20) durchsetzten Hauptkolben (2) und eine Hauptstange (3) mit einem mit dem Kolben fest verbundenen Ende und einem Ende außerhalb des Hohlraums umfaßt, wobei der Kolben eine unvollkommene Sperre bildet, die den Hohlraum in eine kleine Kammer (11), durch welche die Stange hindurchgeht, und eine große Kammer (12) unterteilt, wobei der Kompensator einen Nebenhohlraum (6), einen dichten Nebenkolben (60), um eine Nebenkammer (61) im Nebenhohlraum (60) abzugrenzen, und eine Rückholeinrichtung (62-5) aufweist, die auf den Nebenkolben einwirkt, um darauf abzuzielen, das Volumen der Nebenkammer zu verringern, wobei der Haupthohlraum und die Nebenkammer der Vorrichtung mit Flüssigkeit gefüllt sind, wobei die Leitung (C) die kleine Kammer (11) mit der Nebenkammer (61) verbindet, und wobei die Einrichtung dafür vorgesehen ist, mit der kleinen Kammer verwendet zu werden, welche beim Rückstoß das Volumen vergrößert, dadurch gekennzeichnet, daß die Nebenkammer einen leeren Raum bildet, der vom Nebenkolben und von Nebenhohlraum streng abgegrenzt ist, und daß ein Ventilelement (21) auf die aus dem Hauptkolben und der Stange bestehende Baugruppe angebracht ist, um die Löcher teilweise zu verschließen, wenn das Ventilelement geschlossen ist, und um diese zu öffnen, wenn der Druck in der großen Kammer (12) den der kleinen Kammer um einen vorgegebenen Wert überschreitet.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sie eine Kontrollstange (7), die mit dem Haupthohlraum (1) fest verbunden und innerhalb der großen Kammer (2) angeordnet ist, und daß die Baugruppe aus dem Hauptkolben (2) und der Hauptstange (3) einen hohlen Teil aufweist, der gegenüber der Kontrollstange (7) liegt und in welchen die Kontrollstange je nach der Stellung des Hauptkolbens im Haupthohlraum mehr oder weniger tief eindringt.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Rückholeinrichtung eine mit Gas gefüllte dichte Kammer (62) ist.
EP00905119A 1999-02-16 2000-02-11 Vorrrichtung zur verringerung des rückstosses mit bremse, bremskompensator und rohrvorholer Expired - Lifetime EP1151236B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9901863 1999-02-16
FR9901863A FR2789760B1 (fr) 1999-02-16 1999-02-16 Dispositif anti-recul avec frein, compensateur du frein et recuperateur
PCT/FR2000/000348 WO2000049358A1 (fr) 1999-02-16 2000-02-11 Dispositif anti-recul avec frein, compensateur du frein et recuperateur

Publications (2)

Publication Number Publication Date
EP1151236A1 EP1151236A1 (de) 2001-11-07
EP1151236B1 true EP1151236B1 (de) 2003-09-17

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ID=9542081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00905119A Expired - Lifetime EP1151236B1 (de) 1999-02-16 2000-02-11 Vorrrichtung zur verringerung des rückstosses mit bremse, bremskompensator und rohrvorholer

Country Status (11)

Country Link
US (1) US6536324B1 (de)
EP (1) EP1151236B1 (de)
JP (1) JP4505990B2 (de)
AT (1) ATE250205T1 (de)
DE (1) DE60005303T2 (de)
DK (1) DK1151236T3 (de)
ES (1) ES2208274T3 (de)
FR (1) FR2789760B1 (de)
NO (1) NO320190B1 (de)
PT (1) PT1151236E (de)
WO (1) WO2000049358A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6848351B1 (en) * 2002-05-07 2005-02-01 Robert B. Davies Rifle
US6758126B1 (en) * 2003-03-24 2004-07-06 The United States Of America As Represented By The Secretary Of The Army Apparatus for initially slowly a backwards movement of a bolt group
FR2853408B1 (fr) * 2003-04-03 2007-11-30 Giat Ind Sa Dispositif de recuperation de l'energie produite par le recul d'une arme
DE102006014155A1 (de) * 2006-03-24 2007-09-27 Rheinmetall Waffe Munition Gmbh Hydropneumatisches Brems- und Vorholsystem für Rohrrücklaufgeschütze
FR2945617B1 (fr) 2009-05-13 2011-06-17 Nexter Systems Ensemble de frein de tir pour armes
IL206630A (en) 2010-06-24 2016-11-30 Soltam Systems Ltd Energy absorber for firearms
US8468928B2 (en) * 2011-04-21 2013-06-25 Mandus Group Ltd Soft recoil system
KR101289534B1 (ko) 2011-12-27 2013-07-24 현대위아 주식회사 주퇴복좌기 조립체의 완충기 조립분해 장치
DE102012022682B8 (de) * 2012-11-21 2015-05-13 Rheinmetall Waffe Munition Gmbh Rohrwaffe mit einem massenverriegelbaren Verschlusssystem
DE102012022683A1 (de) * 2012-11-21 2014-05-22 Rheinmetall Waffe Munition Gmbh Massenverriegelbares Waffenverschlusssystem
DE102012022681B4 (de) * 2012-11-21 2015-03-12 Rheinmetall Waffe Munition Gmbh Massenverriegelbares Waffenverschlusssystem
US20160340849A1 (en) * 2015-05-18 2016-11-24 M-B-W, Inc. Vibration isolator for a pneumatic pole or backfill tamper
US10466004B2 (en) * 2015-08-11 2019-11-05 Drew Nolle Walker Optimized flow compensator
FR3047347B1 (fr) * 2016-02-02 2018-02-02 Fcd Module d'absorption d'une onde sonore et dispositif le comprenant
CN109827466A (zh) * 2018-11-27 2019-05-31 中国人民解放军陆军工程大学 一种可压缩液体式驻退复进机
CN110057238B (zh) * 2019-05-23 2024-01-05 中国人民解放军海军工程大学 新型减小摇架冲击力的驻退机
US10823523B1 (en) * 2019-09-25 2020-11-03 Mandus Group Llc Temperature compensator for artillery system

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Publication number Priority date Publication date Assignee Title
DE103975C (de) * 1899-02-11
FR1231005A (fr) * 1946-07-20 1960-09-26 Schneider & Cie Frein-récupérateur
US2574060A (en) * 1949-04-20 1951-11-06 Creusot Forges Ateliers Hydropneumatic recuperator with adjustable power
US3698284A (en) * 1970-07-16 1972-10-17 Us Army Buffer system for decelerating a reciprocating gun
NL7110752A (de) * 1970-10-29 1972-05-03
JPS5216900A (en) * 1975-07-30 1977-02-08 Hori Ebisu Firing device
US4827829A (en) * 1983-12-08 1989-05-09 Ares, Inc. Recoil and counterrecoil buffer for automatic cannon
US4599933A (en) * 1983-12-08 1986-07-15 Ares, Inc. Breech/receiver assembly for automatic cannon
US4774873A (en) * 1986-09-15 1988-10-04 The United States Of America As Represented By The Secretary Of The Army Sleeve recuperator
DE3824153A1 (de) * 1988-07-16 1990-04-26 Rheinmetall Gmbh Waffenrohrruecklaufbremse mit vorlaufdaempfung
FR2765958B1 (fr) 1997-07-11 1999-09-24 Tda Armements Sas Systeme de chargement d'un mortier et mortier equipe d'un tel systeme

Also Published As

Publication number Publication date
NO320190B1 (no) 2005-11-07
WO2000049358A1 (fr) 2000-08-24
JP2002537541A (ja) 2002-11-05
ATE250205T1 (de) 2003-10-15
EP1151236A1 (de) 2001-11-07
DE60005303D1 (de) 2003-10-23
US6536324B1 (en) 2003-03-25
FR2789760B1 (fr) 2001-12-07
NO20013970D0 (no) 2001-08-15
DK1151236T3 (da) 2004-01-26
PT1151236E (pt) 2004-02-27
JP4505990B2 (ja) 2010-07-21
ES2208274T3 (es) 2004-06-16
FR2789760A1 (fr) 2000-08-18
NO20013970L (no) 2001-10-15
DE60005303T2 (de) 2004-07-08

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