Arrow-ground separating and falling-off device of electric connector

Abstract

The invention relates to an electric connector rocket-ground separating and disengaging device, the tail end of the disengaging device is provided with a first electric connector plug and a second electric connector plug, and the first electric connector plug and the second electric connector plug are respectively in adaptive connection with a first socket and a second socket which are fixedly connected with the tail end of a rocket body; the first electric connector plug and the second electric connector plug are connected to a load distribution frame through corresponding pulling-out steel cables, the load distribution frame is connected with a recovery steel cable, and the recovery steel cable penetrates through a recovery power mechanism in the ground service arm; and the recovery power mechanism executes a remote control instruction to trigger a separation and falling action, and provides enough pulling force to enable the first electric connector plug and the second electric connector plug to be pulled and separated from the first socket and the second socket at the same time. According to the separating and falling-off device, a transverse hydraulic swing rod system or an electromechanical actuation system is replaced with the scheme that a single electric bolt lock is matched with a set of pulley heavy hammer mechanism without main power, the scheme complexity is reduced, the reliability is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The invention relates to a rocket-ground separation and falling-off device of an electric connector, which is used for ground launching of a carrier rocket. Background Art

[0002] The existing launch vehicle side wall electrical connector separation and detachment adopts a lateral hydraulic rocker system or an electromechanical actuation system. The lateral hydraulic rocker system requires a complete set of hydraulic system support, and the electromechanical actuation system requires a complete set of electromechanical servo system support. Both of the above solutions have the problems of high complexity, difficulty in achieving reliability indicators, and high production costs.

[0003] In the prior art, the patent "A forced disengagement mechanism and forced disengagement method for connectors with inconsistent disengagement and swinging directions" (application number: CN202111274758.0) adopts a forced disengagement mechanism including: a reduction motor, a guide wheel group I, a guide wheel group II, a winch wheel, a mounting base plate, a storage box, a travel switch assembly, a travel switch touch plate and a touch plate guide track; the mounting base plate is installed as a whole on the rocker bracket, and the rest is installed on the mounting base plate; the extended shaft of the reduction motor is connected to the winch wheel through a key, and a steel cable I is wound around the winch wheel. The steel cable I bypasses the guide wheel group I and is fixed to one side of the travel switch touch plate. The steel cable II is fixed on the other side of the travel switch touch plate, and the steel cable II bypasses the guide wheel group II and is connected to the electrical connector; the travel switch assembly includes a proximal travel switch and a distal travel switch, and the reduction motor drives the winch wheel to rotate, and then by pulling the steel cable to drive the travel switch touch plate to move linearly on the touch plate guide track, it touches the proximal travel switch and the distal travel switch in turn, and sends a trigger signal to the control system to realize the braking of the reduction motor. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the above-mentioned prior art, the present invention proposes an arrow-ground separation and disengagement device for an electrical connector, which replaces the transverse hydraulic rocker arm system or the electromechanical actuation system with a single electric latch lock combined with a set of non-active power pulley hammer mechanism, thereby reducing the complexity of the solution, improving reliability, and reducing manufacturing costs.

[0006] (II) Technical solution

[0007] A rocket-ground separation and detachment device for an electrical connector, wherein the end of the detachment device has a first electrical connector plug and a second electrical connector plug, which are respectively adapted to be connected to a first socket and a second socket fixedly connected to the end of a rocket body; the first electrical connector plug and the second electrical connector plug are respectively connected to a load distribution frame through corresponding detachment cables, the load distribution frame is connected to a recovery cable, and the recovery cable is passed through a recovery power mechanism inside a ground service arm; the recovery power mechanism executes a remote control command to trigger a separation and detachment action, providing sufficient pulling force so that the first electrical connector plug and the second electrical connector plug are simultaneously pulled and separated from the first socket and the second socket.

[0008] The recovery power mechanism comprises an electric bolt, a fixed pulley, a heavy hammer and a heavy hammer guide pin. After the recovery steel cable passes through the electric bolt and wraps around the fixed pulley, the end of the recovery steel cable is fixedly connected to the heavy hammer.

[0009] The end of the weight away from the recovery cable has a bottom surface with a through hole, and the through hole is adapted to the weight guide pin so that the weight can slide along the weight guide pin without the two being separated.

[0010] The weight guide pin is fixed to the ground service arm.

[0011] The electric bolt comprises an electric bolt lock, a locking block and a locking block guide groove, wherein the locking block is installed in the locking block guide groove; and a lock tongue of the electric bolt lock can be inserted into or pulled out of the groove of the locking block.

[0012] In the non-separated state, the locking block is mechanically limited; when separated, the electric bolt lock executes the remote control command to retract the lock tongue, and the mechanical limit of the locking block is released.

[0013] In the non-separation state, the removal steel cable and the recovery steel cable are both in a tensioned state. When the remote control command is triggered, the locking tongue contracts, and the weight moves downward along the weight guide pin, driving the removal steel cable and the recovery steel cable to separate and pull the first electrical connector plug and the second electrical connector plug from the first socket and the second socket at the same time.

[0014] The load distribution frame is an isosceles triangle, the two bottom corners of the load distribution frame are respectively connected to the pull-out steel cables, and the top corner is connected to the recovery steel cable.

[0015] A lower swing steel cable is also connected to the top corner located on the upper side, and the other end of the lower swing steel cable is connected to a place on the outer wall of the ground service arm that is higher than the first electrical connector plug and the second electrical connector plug.

[0016] In the non-separated state, the lower swing steel cable plays a role in balancing the gravity of the load distribution frame; after separation, the lower swing steel cable plays a role in limiting the lower swing action.

[0017] (III) Beneficial effects

[0018] The arrow-ground separation and disengagement device of the electric connector of the present invention adopts a single electric bolt lock and a set of non-active power pulley weight mechanism to replace the transverse hydraulic swing arm system or electromechanical actuation system used in existing models. Since the highly mature electric bolt lock is used as the only single electric control actuator, the technical solution of the present invention is simple, highly reliable, easy to operate in practice, and has lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A state diagram of an arrow-to-ground separation and release device of an electrical connector before separation

[0020] Figure 2 A diagram of the state after the arrow-to-ground separation and removal device of an electrical connector is separated

[0021] Figure 3 Schematic diagram of the unlocking process of electric bolt lock DETAILED DESCRIPTION

[0022] See also Figure 1-2 The present invention provides an electric connector for separating and falling off between a rocket and a ground. The end of the separation device has a first electric connector plug 3 and a second electric connector plug 4, which are respectively adapted to be connected with a first socket 1 and a second socket 2 fixedly connected to the end of a rocket body; the first electric connector plug 3 and the second electric connector plug 4 are respectively connected to a load distribution frame 6 through corresponding removal cables 5, and the load distribution frame 6 is connected with a recovery cable 8, and the recovery cable 8 is passed through a recovery power mechanism inside a ground service arm; the recovery power mechanism executes a remote control command to trigger a separation and falling action, and provides sufficient pulling force to pull the first electric connector plug 3 and the second electric connector plug 4 off from the first socket 1 and the second socket 2 at the same time.

[0023] The recovery power mechanism comprises an electric bolt, a fixed pulley 12 , a weight 13 and a weight guide pin 14 . After the recovery cable 8 passes through the electric bolt and around the fixed pulley 12 , the end thereof is fixedly connected to the weight 13 .

[0024] The end of the weight 13 facing away from the recovery cable 8 has a bottom surface with a through hole, which is adapted to the weight guide pin 14 so that the weight 13 can slide along the weight guide pin 14 without the two being separated; the weight guide pin 14 is fixed to the ground service arm.

[0025] See also Figure 3 The electric bolt includes an electric bolt lock 9, a locking block 10 and a locking block guide groove 11, and the locking block 10 is installed in the locking block guide groove 11; the lock tongue of the electric bolt lock 9 can be inserted into or pulled out of the groove of the locking block 10; in the non-separated state, the locking block 10 is mechanically limited; when separated, the electric bolt lock 9 executes a remote control command to retract the lock tongue, and the mechanical limit of the locking block 10 is released.

[0026] In the non-separation state, the removal steel cable 5 and the recovery steel cable 8 are both in a tensioned state. When the remote control command is triggered, the locking tongue contracts, and the weight 13 moves downward along the weight guide pin 14, driving the removal steel cable 5 and the recovery steel cable 8 to separate and pull the first electrical connector plug 3 and the second electrical connector plug 4 from the first socket 1 and the second socket 2 at the same time.

[0027] The load distribution frame 6 is an isosceles triangle, and the two bottom corners of the load distribution frame 6 are respectively connected to the pull-out steel cables 5 , and the top corner is connected to the recovery steel cable 8 .

[0028] A swing steel cable 7 is also connected to the top corner on the upper side, and the other end of the swing steel cable 7 is connected to a place on the outer wall of the ground service arm that is higher than the first electrical connector plug 3 and the second electrical connector plug 4. In the non-separated state, the swing steel cable 7 plays a role in balancing the gravity of the load distribution frame 6; after separation, the swing steel cable 7 plays a role in limiting the swing action.

Claims

1. An arrow-to-ground separation and removal device for an electrical connector, characterized in that: The end of the disengagement device has a first electrical connector plug (3) and a second electrical connector plug (4), which are respectively adapted to be connected with a first socket (1) and a second socket (2) fixedly connected to the end of the rocket body; the first electrical connector plug (3) and the second electrical connector plug (4) are respectively connected to a load distribution frame (6) through corresponding pull-out steel cables (5); the load distribution frame (6) is connected with a recovery steel cable (8), and the recovery steel cable (8) is passed through a recovery power mechanism inside a ground service arm; the recovery power mechanism executes a remote control command to trigger a separation and fall-off action, and provides sufficient pulling force so that the first electrical connector plug (3) and the second electrical connector plug (4) are simultaneously pulled off and separated from the first socket (1) and the second socket (2).

2. The arrow-to-ground separation and falling-off device of the electrical connector according to claim 1, characterized in that: The recovery power mechanism comprises an electric bolt, a fixed pulley (12), a heavy hammer (13) and a heavy hammer guide pin (14); after the recovery steel cable (8) passes through the electric bolt and winds around the fixed pulley (12), the end thereof is fixedly connected to the heavy hammer (13).

3. The arrow-to-ground separation and falling-off device of the electrical connector according to claim 2, characterized in that: The end of the weight (13) away from the recovery cable (8) has a bottom surface with a through hole, and the through hole is adapted to the weight guide pin (14) so ​​that the weight (13) can slide along the weight guide pin (14) without the two being separated.

4. The arrow-to-ground separation and falling-off device of the electrical connector according to claim 3, characterized in that: The weight guide pin (14) is fixed to the ground service arm.

5. The arrow-to-ground separation and falling-off device of the electrical connector according to claim 4, characterized in that: The electric bolt comprises an electric bolt lock (9), a locking block (10) and a locking block guide groove (11), wherein the locking block (10) is installed in the locking block guide groove (11); and a lock tongue of the electric bolt lock (9) can be inserted into or pulled out of the groove of the locking block (10).

6. The arrow-to-ground separation and falling-off device of the electrical connector according to claim 5, characterized in that: In the non-separated state, the locking block (10) is mechanically limited; in the separated state, the electric bolt lock (9) executes a remote control command to retract the lock tongue, and the mechanical limit of the locking block (10) is released.

7. The arrow-to-ground separation and falling-off device of the electrical connector according to claim 6, characterized in that: In the non-separated state, the pulling-out steel cable (5) and the recovery steel cable (8) are both in a tensioned state. When the remote control command is triggered, the locking tongue contracts, and the weight (13) moves downward along the weight guide pin (14), driving the pulling-out steel cable (5) and the recovery steel cable (8) to simultaneously separate and pull out the first electrical connector plug (3) and the second electrical connector plug (4) from the first socket (1) and the second socket (2).

8. The arrow-to-ground separation and falling-off device of the electrical connector according to claim 7, characterized in that: The load distribution frame (6) is an isosceles triangle, the two bottom corners of the load distribution frame (6) are respectively connected to the pull-out steel cables (5), and the top corner is connected to the recovery steel cable (8).

9. The arrow-to-ground separation and falling-off device of the electrical connector according to claim 8, characterized in that: A lower steel cable (7) is also connected to the top corner on the upper side, and the other end of the lower steel cable (7) is connected to a place on the outer wall of the ground service arm that is higher than the first electrical connector plug (3) and the second electrical connector plug (4).

10. The arrow-to-ground separation and falling-off device of the electrical connector according to claim 9, characterized in that: In the non-separated state, the lower swing steel cable (7) plays a role in balancing the gravity of the load distribution frame (6); after separation, the lower swing steel cable (7) plays a role in limiting the lower swing action.

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