EP2169342B1 - Locking device for weapons systems mounted on a fighting vehicle - Google Patents

Abstract

The lashing device is provided with a cog wheel (2), which is in contact and runs with the sprocket or the gear segment (Z) at its circumference. A controllable device (8) is provided for axial displacement of the clutch plate from an open position and in the lashing position.

Description

The present invention relates to a lashing device for a weapon system arranged on a combat vehicle, wherein the weapon system has a side-facing drive and / or a height-direction drive, which each act on a gear rim connected to the weapon system or a toothed segment.

The lashing device has a gear wheel, which is constantly engageable on its circumference with the ring gear or the toothed segment via an intermediate and can run along.

In the document US 4,527,458 A is described a straightening drive for the weapon-carrying tower of a combat vehicle, with a drive gear which acts on a sprocket connected to the tower. It is a device provided with a first gear, which engages in the sprocket constantly and runs along. With the first gear, a second gear is coupled, which engages as part of a locking gear in a screw. Thus, a rotation of the tower is blocked due to external forces.

Lashing devices for weapons systems on vehicles are known in principle.

Out DE 3204721 A1 is a gun barrel with a Waffenhöhen- and a Waffenseitenrichtteil and a separate from the Waffenhöhenrichtteil, fully automatic charging device is known, wherein the Waffenhöhenrichtteil and the Waffenseitenrichtteil a locking device is provided to hold the barrel during the loading process in a predetermined index position.

Furthermore, it is off DE 3607197 A1 a lashing device for holding a pivotally mounted on a vehicle gun barrel in a predetermined loading position known, which engages as blocking in the force path between the drive motor and weapon.

The DE 3108368 A1 describes a lashing device for the turret of a vehicle, in which the lashing by a positive locking between Turret and the vehicle body by means of permanent magnets is effected.

Finally, in DE 2851604 A1 describes an armored vehicle with a pivoting weapon which can be fixed in a zero position by means of a lashing device, which has a manually operable switch handle and a latching in a recess bolt.

1. 1. Öffnen einer oder mehrerer Luken des Fahrzeugs im Ruhezustand der Richtanlage;
2. 2. Öffnen einer oder mehrerer Luken des Fahrzeugs bei beliebigem Zustand der Richtanlage, beispielsweise beim Notausstieg;
3. 3. Stromausfall in der Versorgungseinrichtung für die Zurrvorrichtung;
4. 4. Stromausfall im Gesamtsystem des Fahrzeugs.

The invention has for its object to provide a lashing device for a arranged on a combat vehicle weapons system with the features indicated above and in the preamble of claim 1, which serves as an additional securing element for leveling, when arranged on the directional stop brake, due to external influences the weapon system, the position of the respective drive axle can no longer hold. The lashing should be closed fully automatically, especially in the following operating conditions:

1. 1. opening one or more hatches of the vehicle in the resting state of the straightening system;
2. 2. opening one or more hatches of the vehicle in any state of the straightening system, for example, the emergency exit;
3. 3. Power failure in the supply device for the lashing device;
4. 4. Power failure in the overall system of the vehicle.

The lashing device according to the invention is intended to ensure that the respective drive axle (height / side) no longer performs any non-movement when the lashing is closed.

The solution of this object is achieved according to the invention with the features of the characterizing part of claim 1. Advantageous developments of the invention are described in the dependent claims.

Thus, according to a particularly advantageous embodiment of the invention, the controllable device for axial displacement of the clutch disc having a spring element, by the force of which the clutch disc is guided from the open position to the lashing position and held there. In this case, an electromechanical drive device may be provided, which is activated in the energized state and holds in this state, the spring element in its cocked state and releases in the deactivated state. This means that in the directional and stabilization operation of the weapon system, the lashing is held by the permanently energized drive device in the "lash open" position. In the closed position, the lashing engages directly in the drive element of the respective drive axle, which may be formed for example as a sprocket or toothed segment. An interruption of the power supply of the lashing device or the power supply of the entire system in the vehicle necessarily leads to the closing of the lashing.

It is also possible to ensure in the lashing device according to the invention that the closing of the lashing takes place only when no angular velocity of the drive elements is present and thus the holding brake of the respective drive axle is effective. As explained below with reference to an embodiment, this is achieved by a mechanical or electrical means achieved delaying the triggering of the lashing device.

In the following an embodiment of a lashing device according to the invention will be explained in more detail with reference to the accompanying drawings.

In the drawings show:

Fig. 1

in a partially sectioned side view of a lashing device for Höhenrichtantrieb the unillustrated weapons system of a vehicle, not shown;

Fig. 2

in a perspective partial representation of the lashing after Fig. 1 when closed;

Fig. 3

the lashing device after Fig. 2 in a perspective view in the open state from another viewing direction;

Fig. 4

in a perspective view of the lashing device according to the Fig. 1 to 3 in the closed state with in the end position befindlicher drive device;

Fig. 5

the lashing device after Fig. 1 to 4 seen in another viewing direction in the closed state with located in the end position drive device;

Fig. 6

the lashing device after the Fig. 1 to 5 in the closed state with in the initial position befindlicher drive device;

Fig. 7

the lashing device after Fig. 1 to 6 in a perspective view in the closed state with located in the initial position drive device;

Fig. 8

the lashing device after Fig. 1 to 7 in a partial perspective view in the closed state with located in the initial position of the drive device;

Figs. 9A and 9B

two views of the switching ring of the lashing after Fig. 1 to 8 ;

10A, 10B, 10C

three views of the clutch disc of the lashing after Fig. 1 to 8 ;

Fig. 11

in a sectional view of the assembled unit of gear, clutch disc and switching ring of the lashing after Fig. 1 to 8 ,

Fig. 12

in a partially broken side view a partial view of a variant of the lashing device for a side-facing drive.

Fig. 1 shows in a partially sectioned side view of a lashing device which acts on a toothed segment Z, which is part of the Höhenrichtantriebs a weapon system, not shown, which is installed in a combat vehicle, also not shown.

A gear 2 engages via an intermediate 3 in the toothed segment Z and thus runs constantly with movements of the toothed segment. The toothed wheel 2 can be blocked by the lashing device in a manner explained in more detail below and, in this state, prevents the further movement of the toothed segment Z. The lashing is then closed.

Instead of a gear 2 and two or more such gears may be present, all of which engage in the toothed segment or a ring gear and run along and which are all simultaneously blocked by the lashing ago. The arrangement may be advantageous when larger masses must be lashed, such as in a lateral directional drive explained below. The occurring forces are then distributed over several gears.

The gear 2 has at its in Fig. 1 facing away from the viewer face, in Fig. 8 and Fig. 11 is visible, a toothing arranged concentrically to the axis of rotation of the toothed rack, which is a first toothing 2.1 and has a tooth spacing which is smaller by a predetermined factor than Coaxially to the axis of rotation of the gear 2 is a non-rotatable, but axially displaceable clutch disc 4, the one facing the gear 2 facing end face of the first teeth 2.1 opposite second teeth 4.1 with the same tooth spacing (s. Fig. 8 . 10A to 10C . Fig. 11 ). In the illustrated embodiment, both the first toothing 2.1 and the second toothing 4.1 are formed as a Hirth toothing.

At the end facing away from the gear 2 end face of the clutch disc 4 control cam 4.2 are arranged and coaxial with the clutch disc 4, a switching ring 5 is arranged in the Fig. 7 . 8th . 9A, 9B and 11 can be seen more accurately. The switching ring 5 is rotatable, but arranged immovably in the axial direction. On its side facing the clutch disk 4, it is provided with control surfaces 5.1 which cooperate with the control cams 4.2 of the clutch disk 4 during a rotation of the shift ring 5 in the sense of an axial displacement of the clutch disk 4.

Thus, the gear 2 is blocked by the switching ring 5 is rotated to a position in which on the control surfaces 5.1 and the control cam 4.2, the clutch disc 4 against the force of a return spring 6 (s. Fig. 11 ) is shifted in the position in which the teeth 4.1 and 2.1 interlock. In this position, the lashing is closed.

The clutch disc 4 is in the surrounding the gear 2 and the intermediate 3 housing 1.1 elastically mounted so that a rotation angle corresponding to half a pitch of the Hirth toothing, can be compensated, so that even at the most unfavorable holding position of the Hirth toothing 2.1 of Gear 2 hereby a secure engagement of the teeth 4.1 of the clutch disc 4 and thus closing the lashing is ensured. This happens in the following way. The non-rotatable, axially displaceable clutch disc 4 sits like that Figs. 10A and 10C with given angular play 7.1 ( Fig. 10C) on a splined shaft 7, which is fixedly mounted in the housing 1.1. The clutch disc 4 has, like the Figures 2 and 10 A can be seen, at its periphery a radially outwardly extending pin 4.3, which is arranged between the ends of two coil springs resetting units 18.1 and 18.2. This has the consequence that the clutch disc 4 is at the meeting of the teeth 4.1 and 2.1 against the elastic force of the return units 18.1 and 18.2 in the context of the angular play 7.1 rotatable so that the teeth can securely mesh. In this way, external forces or torques are transferred to the respective drive axle with the lashing closed to the ever-engaged gear 2 and thus via the intermeshing teeth 2.1 and 4.1 on the clutch plate 4 and from there to the splined shaft 7 in the housing 1.1 drehwinkelfest is installed.

The residual play of the alignable mass is, with the lashing closed, a maximum of one tooth width of the Hirth toothing plus the tooth backlash of the toothed tooth Z engaging toothed wheel.

For actuation of the switching ring 5, this has a lever arm 5.2, via which it is coupled to a sliding strip 9, which is displaceable in a linear guide within a frame 1 of the lashing device. The coupling element 5.21 is guided in a slot 1.2 of the frame 1. The push bar 9 is under the force of a first spring element 8, through which it is pressed in a released state in the position in which the switching ring 5 is in a position in which the lashing is closed as described above. The sliding strip 9 has a toothing 9.1, in which the output gear 10.1 ( Fig. 2 ) engages an electromechanical drive device 10 which is activated in the energized state, ie in the energized state of the drive device 10, the driven gear 10.1 against the force held the spring element 8. In case of power failure or a signal which switches the drive device 10 from the activated to the deactivated state, the driven gear 10.1 is released and the sliding bar 9 can basically in the force of the first spring element 8 in the Fig. 1 to 6 move to the right, the switching ring 5 is brought in the manner explained above in the position in which the lashing is closed.

A Verzurrung can be done automatically by means of the drive device 10 via the output gear 10.1 and the teeth 9.1, the sliding bar is moved back into a position in which is moved to generate a bias on the spring element 8 of the switching ring 5 in a position in which the lashing is open. To detect the positions of the sliding bar 9 "lashing closed" and "lashing open" are used on the displacement path of the sliding bar 9 arranged sensors 11 and 12, the corresponding electrical signals.

A delay of the guidance of the lashing in the closed state to ensure that the closing takes place only when there is no angular velocity of the drive elements, can basically be done electrically via a capacitor.

In the illustrated embodiment, a mechanical delay is provided, which is constructed as follows.

The drive device 10 is arranged on the housing frame 1 in the direction of the displacement path of the sliding bar 9 slidably. For this purpose, it is arranged on a slide 10.2 which is guided in a guide 10.3 on the housing 1 ( Fig. 7 ). The carriage 10.2 is under the force of a second spring element 13, the force of which has the tendency to move the carriage 10.2 and thus the drive device 10 in a direction that in the Fig. 1 to 6 to the left, ie opposite to the direction of movement of the sliding bar 9 when closing the lashing.

At the in the Fig. 1 to 6 left end of the sliding bar 9 is a recess 9.2 ( Fig. 1 ), in which by means of a hook of a lever arm 14.1 of a two-armed, mounted on the housing pivot lever 14 engages the other lever arm 14.2 in the displacement path of the carriage 10.2 arranged control element 15 and is actuated by this control, when the carriage 10.2 under the force of Spring element 13 in the Fig. 1 to 6 is moved to the left. Only when the control 15 meets the lever arm 14.2, the lever arm 14.1 is unlocked and the sliding bar 9 is released, which is then moved in the manner already described under the action of the spring element 8 and causes the closing of the lashing. This condition with closed lashing is in the Fig. 4 and 5 can be seen, wherein the carriage 10.2 with the drive device 10 is still in the final position in the Fig. Left. In Fig. 6 is shown as the carriage 10.2 is returned by driving device 10 to generate the bias on the second spring element 13 back to the starting position. The respective position of the drive device 10 is detected by a sensor 17.

A return of the lashing device from the closed to the open position is also possible by purely manual means.

For this purpose, a return device 16 is used, which has a crank mechanism 16.1 arranged, for example, on a side wall F of the vehicle, through which a pull rod 16.3 can be moved in the axial direction via a helical gear 16.2. The drawbar 16.3 is substantially aligned with the sliding bar 9. The sliding bar 9 is on a sliding drawbar 16.4 (s. 4 to 6 ) arranged, which has a slot guide 16.5, in which engages an unillustrated pin on the underside of the sliding bar 9.

If the pull bar 16.4 is pulled out in the direction of the helical gear 16.2 by operating the crank mechanism, the sliding bar 9 is taken after passing through the slot guide 16.5 and returned to the position in which the lashing is opened. If the lock is effected by the pivot lever 14, the pull bar 16.4 can be inserted again.

The sequence of the closing process of the lashing will be explained again below.

The lashing device is initially located in the Fig. 1 and 3 illustrated open position of the lashing. The push bar 9 is held against the force of the first spring element 8 by means of the lever arm 14.1 of the locking device. The carriage 10.2 and with it the drive device 10 are in the Fig. 1 and 3 in the right starting position and are held against the force of the second spring element 13 in the energized state via the engaging in the teeth 9.1 driven gear 10.1. Now, if the energization of the drive device 10 is interrupted, the output gear 10.1 no longer holds the carriage 10.2 and this moves together with the drive device 10 under the force of the second spring element 13 from the in Fig. 1 to 3 shown position to the left in an end position in which the control element 15 impinges on the lever arm 14.2 of the pivot lever 14, this pivots and thus releases the locking of the sliding strip 9. By the way of the slot 10.2 until the release of the locking of the sliding bar 9, the delay of the response of the lashing device is determined. Once the lock is released by the pivot lever 14.1, the sliding bar 9 moves under the action of the first Spring element 8 to the right in the in the 4 to 6 shown position, which has the consequence that the switching ring 5 is rotated in such a way that the clutch disc 4 is moved to the position in which the teeth 4.1 and 2.1 intermesh, whereby the gear 2 and with it the intermediate 3 are blocked and a further pivoting of the toothed segment Z is no longer possible. The lashing is closed.

Fig. 12 shows a part of a lashing device for a side-facing, which is basically the same structure as the lashing device described above for the elevation drive of a weapon. In Fig. 12 are the embodiment of the FIGS. 1 to 11 corresponding parts with the same reference numerals with the addition of one or two Apostrophstriche designated. In the ring gear Z 'of the straightening drive engage two adjacent axially parallel gears, of which one gear 2' can be seen, while the second gear is removed to make the underlying clutch disc 4 "visible .. The clutch disc 4" again sits with a predetermined Angle play displaceable on a splined shaft 7 "The invisible switching rings are coupled via lever arms 5.2 'and 5.2" with a push bar 9', which is under the force of the first spring element 8 '. In this lashing device has the clutch disc 4 "at two opposite points of the circumference radially outwardly projecting pins 4.3", which are each arranged between reset units 18.1 "and 18.2" and in the manner already described above, a possibility of twisting the clutch disc 4.2 'in the context of ensure predetermined angular play against the elastic force of the reset units 18.1 "or 18.2".

By the use of two meshing in the ring gear Z 'gears, as mentioned above, ensures that the forces are distributed to the two gears.

In the other parts, the lashing device is constructed analogously to the lashing device according to the FIGS. 1 to 11 ,

Claims (18)

1. Locking device for a weapon system arranged on a combat vehicle, wherein the weapon system has a lateral directional drive and/or an elevation directional drive, which each act on a sprocket (7) connected to the weapon system or a toothed segment, with a toothed wheel (2), which is constantly engageable at its periphery with the sprocket or the toothed segment (7), if applicable via an intermediate wheel (3), and can run along, with the following features:

   a. on an end face of this toothed wheel (2), a toothed strip is arranged concentrically to the axis of rotation of the toothed wheel with a first gearing (2.1), which has a tooth spacing that is smaller by a predetermined factor than the tooth spacing at the periphery of the toothed wheel (2);

   b. a clutch plate (4) lying coaxially to the axis of rotation of the toothed wheel (2), which plate cannot rotate but is axially movable and has on its surface facing the toothed wheel (2) a second gearing (4.1) with the same tooth spacing lying opposite the first gearing (2.1);

   c. an activatable device (5, 6, 8) for the axial displacement of the clutch plate (4) from an open position, in which the first (2.1) and second (4.1) gearing are out of engagement, into a locking position in which the first and second gearing are engaged with a predetermined pressing force and back.
2. Locking device according to claim 1, characterised in that the activatable device for axial displacement of the clutch plate (4) has at least a first spring element (8), due to the force action of which the clutch plate (4) is guided from the open position into the locking position and is held there.
3. Locking device according to claim 2, characterised by an activatable drive system, which in the activated state holds the first spring element (8) in its tensioned state and releases the first spring element in the deactivated state.
4. Locking device according to claim 3, characterised in that the activatable drive system has an electromechanical drive device (10), which is activated in the energised state.
5. Locking device according to claim 3, characterised in that the activatable drive system has a hydraulic or pneumatic drive device, which is activated when a predetermined pressure is applied.
6. Locking device according to one of claims 1 to 5, characterised in that the first (2.1) and the second (4.1) gearing are formed as Hirth gearing.
7. Locking device according to one of claims 1 to 6, characterised in that the axial displacement of the clutch plate (4) takes place via a cam controller (4.2-5.1).
8. Locking device according to claim 7, characterised in that on the surface of the clutch plate (4) facing away from the toothed wheel (2), control cams (4.2) are arranged and coaxially to the clutch plate (4) a shift ring (5) is arranged rotatably, but immovably in the axial direction, which ring has control faces (5.1) on its side facing the clutch plate (4), which interact with the control cams (4.2) on its rotation in the sense of an axial displacement of the clutch plate and the shift ring (5) is coupled rotatably to the first spring element (8).
9. Locking device according to claim 8, characterised in that the axial displacement of the clutch plate (4) into the locking position takes place against the force of a reset spring (6).
10. Locking device according to claim 8 or 9, characterised in that the shift ring (5) is articulated via a lever arm (5.2) on a thrust bar (9) guided in a housing or frame (1), on which bar the force of the first spring element (8) acts and which is coupled to the activatable drive system (10).
11. Locking device according to claim 10, characterised in that the coupling of the thrust bar (9) to the activatable drive system (10) takes place via a gearing (9.1), in which a drive wheel (10.1) of the drive device (10) engages.
12. Locking device according to claim 10 or 11, characterised in that the clutch plate (4) is arranged axially displaceably on a spline shaft (7) fixedly arranged in the housing.
13. Locking device according to claim 10, characterised in that sensors (11, 12) or end switches for detecting the positions of the thrust bar (9) are arranged on the displacement path of the thrust bar (9).
14. Locking device according to claim 4, characterised in that a capacitor that delays the drop in the supply current by a predetermined time interval is arranged in the supply circuit in an electromechanical drive device.
15. Locking device according to claims 3 and 11, characterised by a mechanical apparatus for delaying the release of the first spring element (8) with a carriage (10.2) movable parallel to the thrust bar (9) by the force action of a second spring element (13), on which carriage the drive device (10) is arranged, wherein the second spring element (13) is pretensioned in the activated state of the drive device (10) and the thrust bar (9) is held by a locking device (14), which on deactivation of the drive device (10) after the carriage (10.2) has completed a predetermined path is released by this and thereby the first spring element (8) is released.
16. Locking device according to claim 15, characterised in that the locking device is formed as a two-armed pivot lever (14) supported on the housing, one lever arm (14.1) of which engages for locking with a hook in a recess (9.2) on the thrust bar (9) and the other lever arm (14.2) of which is actuatable by a control element (15) arranged on the carriage for unlocking.
17. Locking device according to one of claims 1 to 16, characterised by a manually actuatable return device (16) for unlocking.
18. Locking device according to claim 17, characterised in that the return device (16) has a worm gear (16.2) actuatable via a crank drive (16.1), which gear is coupled via a connecting rod (16.3) to a latch bar (16.4) guided parallel to the thrust bar (9) and the thrust bar (9) is guided in a guide slot (16.5) of predetermined length on the latch bar (16.4) in such a way that on a displacement of the latch bar (16.4) by the predetermined length, the thrust bar (9) is carried along and guided into the unlocking position.

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