EP3583375B1 - Rohrbremse - Google Patents

Rohrbremse Download PDF

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Publication number
EP3583375B1
EP3583375B1 EP18702495.5A EP18702495A EP3583375B1 EP 3583375 B1 EP3583375 B1 EP 3583375B1 EP 18702495 A EP18702495 A EP 18702495A EP 3583375 B1 EP3583375 B1 EP 3583375B1
Authority
EP
European Patent Office
Prior art keywords
barrel
cylinder
control rod
gun
control
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.)
Active
Application number
EP18702495.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3583375A1 (de
Inventor
Florian SCHWIEGER
Berthold Baumann
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.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP3583375A1 publication Critical patent/EP3583375A1/de
Application granted granted Critical
Publication of EP3583375B1 publication Critical patent/EP3583375B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F41A25/02—Fluid-operated systems

Definitions

  • the present invention relates to a barrel brake for braking the barrel when a barrel weapon returns.
  • Such pipe brakes are required for pipe recoil guns. These are known from stationary guns as well as from mobile guns, for example on combat vehicles.
  • the weapon barrel moves backwards as the bullet passes, i.e. in the opposite direction to the direction of the bullet.
  • the forces of pipe pre-haulers and pipe brakes also act on the returning mass of the pipe.
  • pipe brakes are usually used, which are arranged symmetrically to the pipe core axis and the resulting braking force lies in the pipe core axis. With such an arrangement, it would be advantageous that the pipe brakes generate the same braking forces at every point in time when the projectile passes through the pipe. However, due to manufacturing tolerances of the pipe brakes, deviations are unavoidable.
  • a possible solution is to only allow the braking force to take effect once the bullet has left the barrel.
  • the braking cross-section is kept very large at the beginning of the return path so that the braking force is very small.
  • This principle is, for example, from EP 0027863 81 known.
  • a barrel brake for braking the barrel when a barrel weapon is moving backwards and forwards. It describes a hollow cylinder with an outer and an inner diameter.
  • the cylinder contains a control rod D and a piston rod surrounding the control rod.
  • the piston rod together with the piston B1, which surrounds the control rod, can move within the cylinder coaxially with the cylinder and the control rod.
  • the interior of the cylinder is filled with a brake fluid.
  • the object of the present invention is therefore to overcome the disadvantages of the solutions from the prior art and to ensure a tubular brake which, compared to conventional tubular brakes, does not require more space and can exert a braking force right from the start of the braking distance. This braking force should be controllable later in the braking movement. This design is intended to prevent these pipe brakes from generating different braking forces at the same time when several pipe brakes are used.
  • a barrel brake is proposed for braking the barrel when a barrel weapon returns.
  • This pipe brake has a hollow cylinder, which means it has an outer and an inner diameter.
  • the outer diameter is thus that of the outer wall of the cylinder and the inner diameter is defined by the hollow interior of the cylinder.
  • a control rod is arranged in the cylinder and a piston rod surrounding the control rod.
  • This piston rod surrounding the control rod is arranged within the cylinder coaxially to the cylinder and can be moved coaxially in relation to the control rod.
  • the piston rod can therefore also be moved coaxially with the cylinder.
  • the movement of the piston rod can be achieved by Bauli che measures of the cylinder can be limited, for example by projections or guide grooves within the cylinder.
  • the interior of the cylinder is filled with a brake fluid.
  • the piston rod has a control gap which is arranged between the piston rod and the control rod.
  • the brake fluid which is displaced when the piston rod moves, must now flow through the control gap in order to enable volume compensation of the brake fluid.
  • the control gap is designed in such a way that the flow of the brake fluid through the control gap generates a braking force on the movement of the piston rod.
  • the control rod is provided with different diameters along the length of the cylinder.
  • the control rod has areas with a constant diameter as well as areas with tapering diameters or areas with expanding diameters.
  • the control rod has a first area with a constant diameter, which adjoins the end at which the control rod corresponds to the inner diameter of the cylinder.
  • the adjoining area of the control rod is then provided with a tapering or widening diameter or with areas in which the diameter remains the same. Due to these different diameters, the course of the braking distance can be provided with different braking forces.
  • the control rod thus ensures that the braking forces can be controlled during a braking movement.
  • the corresponding areas with the different diameters of the control rod can be aligned to an individually desired braking characteristic.
  • the different areas with the different diameters of the control rod therefore represent the control profile of the control rod.
  • control rod is inserted into the cylinder, preferably by screwing it in.
  • it can also be inserted into the cylinder by a press fit.
  • Other types of attachment of the control rod in the cylinder are also conceivable, for example welding or soldering.
  • the control rod is inserted into the cylinder in such a way that a fixed insertion depth is provided, which means that when manufacturing various tubular brakes, the control rod is always inserted into the cylinder at a fixed insertion depth. When screwed in, this corresponds to the same specified screw-in depth.
  • the diameter is constant and preferably corresponds to the length that the brake requires as a path when the ammunition passes through the barrel weapon. This ensures that the areas with the different diameters only develop their braking effect or control the braking effect after the ammunition has left the barrel weapon.
  • a hydraulic fluid is preferably used as the brake fluid.
  • the cylinder control rod and piston rod are preferably made of metal. These designs ensure that standard materials can be used, both for the brake fluid and for the construction of the mechanical components.
  • the barrel weapon preferably has a cradle on which the cylinder is arranged.
  • the piston rod is thus connected to the returning tube of the barrel weapon.
  • the action of the barrel brake can also be reversed, so that the cradle of the barrel weapon is arranged on the piston rod and the cylinder is connected to the returning tube of the barrel weapon.
  • the barrel brake can be used to brake the barrel when a barrel weapon is returning.
  • two pipe brakes are preferably used to brake a pipe.
  • the arrangement of the two barrel brakes for braking the retrograde barrel weapon is then preferably designed in such a way that the barrel of the barrel weapon has a barrel core axis and the barrel brakes are arranged symmetrically to the barrel core axis.
  • the barrel core axis is the central axis in the longitudinal direction of the weapon barrel.
  • the control rod Since the braking distance begins at the beginning of the tubular brake according to the invention, the control rod does not have to be longer than in conventional tubular brakes, which means that the proposed tubular brake does not require any more space than conventional tubular brakes. Furthermore, the technical effort required to produce the cross sections of the control rod is kept low.
  • the first area of the control rod with a constant diameter is manufactured with very tight tolerances, since it is important here that when multiple pipe brakes are used, the diameter of this first area is always as equal as possible. Otherwise, the vibrations described above occur within the barrel weapon when the ammunition is fired. In the remaining areas of the braking distance, the control rod, these tight tolerances are no longer so important, since once the ammunition has passed through the barrel weapon, the precision of the ammunition is no longer affected.
  • Fig. 1 shows the significant portion of a pipe brake according to the invention in section.
  • the pipe brake consists of a cylinder 1, which is hollow and therefore has an outer and an inner diameter.
  • the control rod 2 is arranged in the cylinder 1.
  • the control rod 2 has an end 7 which has the same diameter as the inner diameter of the cylinder.
  • a piston rod 3 surrounding the control rod 2 is further provided within the cylinder 1 and arranged in such a way that the piston rod 3 can be moved coaxially to the cylinder 1 and to the control rod 2.
  • the movement of the piston rod 3 is limited by the structural conditions of the cylinder 1.
  • the control rod 2 is preferably screwed into the cylinder 1 and the piston rod 3 is connected to the returning mass that is to be braked.
  • cylinder 1 In the example of Fig. 1 It is suggested to connect cylinder 1 to the cradle.
  • the interior of the cylinder 1 is also filled with a brake fluid 11.
  • the piston rod 3 also has a control gap 4, which is arranged between the piston rod 3 and the control rod 2. This control gap 4 determines the braking force of the pipe brake. If the mass to be braked moves back, the piston rod 3 moves to the right. The piston rod 3 thus moves away from the end 7 of the control rod 2 during braking movement.
  • the control rod 2 has a first area 5, which adjoins the end 7 of the control rod 2.
  • the control rod 2 has a constant diameter. This constant diameter has the advantage that even with different screwing depths 6 of the control rod 2 into the cylinder 1, the braking forces of several pipe brakes remain the same at the beginning of the return path.
  • This first area 5 should be manufactured with very tight tolerances, so that this area 5 can only create small differences in its braking force when using different pipe brakes.
  • This first area 5 is preferably as long as the returning mass is required until the ammunition to be fired has left the barrel weapon. Only after this first area 5 does the actual control profile begin.
  • the actual control profile begins, which consists of different areas 8, 9, 10 with tapering and/or widening diameters or constant diameters. Through these different areas, a specific control profile that the brake should have can be implemented.
  • the present invention is not limited to the above-mentioned features; rather, further embodiments are conceivable. It would be possible to make parts of the pipe brake (cylinder piston rod and/or control rod) from a material other than metal. It is also possible to use materials with a slight elasticity. By using such materials, dynamic forces can be realized when initiating the braking process.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)
EP18702495.5A 2017-02-15 2018-01-31 Rohrbremse Active EP3583375B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017103052.2A DE102017103052A1 (de) 2017-02-15 2017-02-15 Rohrbremse zum Abbremsen des Rohres beim Rücklauf einer Rohrwaffe
PCT/EP2018/052387 WO2018149644A1 (de) 2017-02-15 2018-01-31 Rohrbremse zum abbremsen des rohres beim rücklauf einer rohrwaffe

Publications (2)

Publication Number Publication Date
EP3583375A1 EP3583375A1 (de) 2019-12-25
EP3583375B1 true EP3583375B1 (de) 2023-12-13

Family

ID=61132436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18702495.5A Active EP3583375B1 (de) 2017-02-15 2018-01-31 Rohrbremse

Country Status (7)

Country Link
EP (1) EP3583375B1 (fi)
DE (1) DE102017103052A1 (fi)
DK (1) DK3583375T3 (fi)
ES (1) ES2968411T3 (fi)
FI (1) FI3583375T3 (fi)
PL (1) PL3583375T3 (fi)
WO (1) WO2018149644A1 (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019121982A1 (de) 2019-08-15 2021-02-18 Rheinmetall Waffe Munition Gmbh Rohrbremse und Rohrwaffe
WO2024115876A1 (en) * 2022-11-30 2024-06-06 Bae Systems Plc Artillery weapon
EP4379307A1 (en) * 2022-11-30 2024-06-05 BAE SYSTEMS plc Artillery weapon

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US483829A (en) * 1892-10-04 William j
FR338918A (fr) * 1903-07-18 1904-09-21 Schneider & Cie Dispositif amortisseur des chocs produits par le retour en batterie, pour affuts de bouches à feu à tir rapide
US927862A (en) 1905-10-04 1909-07-13 Krupp Ag Fluid-brake for recoil-guns.
GB125465A (en) * 1916-08-16 1919-04-24 Beardmore William & Co Improvements in Recoil Apparatus for Ordnance.
DE542316C (de) * 1930-09-12 1932-01-22 Rheinische Metallw & Maschf Rueck- und Vorlaufbremse fuer Rohrruecklaufgeschuetze
DE641034C (de) * 1931-11-17 1937-01-21 Fried Krupp Akt Ges Fluessigkeitsbremse fuer Geschuetzrohre
DE2943083C2 (de) 1979-10-25 1981-11-26 Rheinmetall GmbH, 4000 Düsseldorf Hydraulische Rohrrücklaufbremse
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

Also Published As

Publication number Publication date
DE102017103052A1 (de) 2018-08-16
FI3583375T3 (fi) 2024-01-18
EP3583375A1 (de) 2019-12-25
PL3583375T3 (pl) 2024-04-29
DK3583375T3 (da) 2024-01-22
ES2968411T3 (es) 2024-05-09
WO2018149644A1 (de) 2018-08-23

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