Offshore long-distance laser detonating device and detonating method

Abstract

The invention discloses an offshore long-distance laser detonating device which comprises a laser excitation device located on the shoreside, a sea surface stabilizing device is arranged on the sea surface away from the shoreside, the sea surface stabilizing device comprises a floating body, a supporting door frame is installed on the floating body, a gravity stabilizing frame is installed on the supporting door frame, and a connecting rod is installed on the gravity stabilizing frame. One end of the connecting rod is provided with a counterweight piece, the other end of the connecting rod is provided with a course axis stabilizer, the course axis stabilizer is sequentially connected with a transverse rolling axis stabilizer and a pitch axis stabilizer, the pitch axis stabilizer is connected with a focal length adjusting rod, one side of the focal length adjusting rod is provided with an optical lens, and the other side of the focal length adjusting rod is provided with a laser shielding rod. An explosion propagation fixing device is mounted on the laser shielding rod; laser beams generated by the laser excitation device are emitted to the optical lens, the energy of the laser beams can be focused to the focus position, a detonator in the explosion propagation fixing device located at the focus position is burnt and detonated when receiving the focused laser energy, and then a detonating cord is triggered for explosion propagation.

Description

Technical Field

[0001] The invention relates to an offshore long-distance laser detonation device and a detonation method, and belongs to the field of explosion mechanics. Background Art

[0002] In offshore explosion tests, traditional detonation methods have many problems, such as signal transmission is susceptible to interference, energy transfer efficiency is low, and detonation accuracy and reliability are difficult to ensure. These problems are particularly prominent in long-distance detonation scenarios, which seriously restrict the safety and efficiency of offshore explosion tests. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a remote laser detonation device at sea, which realizes efficient, precise and safe control of remote detonation at sea, and provides reliable technical support for large-equivalent explosion tests at sea.

[0004] Technical solution: To solve the above technical problems, the present invention provides a long-distance marine laser detonation device, including a laser excitation device located on the shore, a sea surface stabilization device is provided on the sea surface far away from the shore, the sea surface stabilization device includes a floating body, a supporting gantry is installed on the floating body, a gravity stabilization frame is installed on the supporting gantry, a connecting rod is installed on the gravity stabilization frame, a counterweight is provided at one end of the connecting rod, and a heading axis stabilizer is provided at the other end, the heading axis stabilizer is connected with the roll axis stabilizer and the pitch axis stabilizer in sequence, the pitch axis stabilizer is connected with the focal length adjustment rod, an optical lens is installed on one side of the focal length adjustment rod, a laser shielding rod is installed on the other side, and an explosion transmission fixing device is installed on the laser shielding rod; the laser beam generated by the laser excitation device is directed to the optical lens, and its energy will be focused to the focal position, the detonator in the explosion transmission fixing device located at the focal point is burned and detonated when receiving the focused laser energy, thereby triggering the detonating cord for explosion transmission.

[0005] Preferably, the explosion transmission fixing device includes a support block, in which a detonating cord reserved hole and a detonator reserved hole are provided, an explosion transmission gap is provided between the detonating cord reserved hole and the detonator reserved hole, and a laser irradiation hole is provided on one side of the support block close to the detonator reserved hole, and the laser irradiation hole is connected to the detonator reserved hole.

[0006] Preferably, the optical lens is mounted on a focal length adjustment rod via a distance adjustment device.

[0007] Preferably, the distance adjustment device comprises a motor, the motor is connected to a screw, the screw is connected to an adjustment block provided with threads, the adjustment block can slide along the focal length adjustment rod, and the optical lens is mounted on the adjustment block.

[0008] Preferably, the focal length adjustment rod is provided with a U-shaped groove, the adjustment block is provided with a boss, and the boss slides along the focal length adjustment rod.

[0009] A method for detonating a remote laser detonator at sea, comprising the following steps: (1) Start the laser excitation device to generate a high-energy laser beam; (2) Adjust the direction of laser emission so that it is accurately aimed at the directional energy focusing device; (3) The laser beam is irradiated onto the directional energy focusing device, and the energy is focused to the focal point; (4) The detonator at the focal point is burned by the laser, triggering the explosion. The detonating cord transfers the explosion energy underwater, achieving detonation.

[0010] Beneficial effects: In the marine long-distance laser detonation device of the present invention, the laser beam generated by the laser excitation device is directed to the directional energy focusing device. No matter where the laser beam irradiates the directional energy focusing device, its energy will be focused to the focal position. The detonator in the explosion transmission fixing device located at the focal point is burned and detonated when receiving the focused laser energy, thereby triggering the detonating cord for explosion transmission. During the entire detonation process, the sea surface stabilization device works in real time to reduce the impact of sea surface shaking on the device and ensure the accuracy and reliability of detonation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention.

[0012] Figure 2 It is a schematic diagram of the structure of the distance adjustment device of the present invention.

[0013] Figure 3 It is a schematic diagram of the main structure of the floating body of the present invention.

[0014] Figure 4 It is a schematic diagram of the structure of the sea surface stabilizing device of the present invention.

[0015] 1. Laser excitation device, 2. Directional energy focusing device, 21. Optical lens, 22. Lens fixing tripod, 23. Focus adjustment rod, 24. Laser shielding rod, 3. Explosion transmission fixing device, 31. Detonating cord reserved hole, 32. Detonator reserved hole, 33. Explosion transmission gap, 34. Laser irradiation hole, 4. Sea surface stabilization device, 41. Floating body, 42. Support gantry, 43. Gravity stabilization frame, 44. Counterweight, 45. Heading axis stabilizer, 46. Roll axis stabilizer, 37. Pitch axis stabilizer. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] like Figures 1 to 4As shown, a long-distance laser detonation device at sea of ​​the present invention comprises a laser excitation device located on the shore, a sea surface stabilizing device is arranged on the sea surface far from the shore, the sea surface stabilizing device comprises a floating body, a supporting gantry is installed on the floating body, a gravity stabilizing frame is installed on the supporting gantry, a connecting rod is installed on the gravity stabilizing frame, a counterweight is provided at one end of the connecting rod, and a heading axis stabilizer is provided at the other end, the heading axis stabilizer is connected with the roll axis stabilizer and the pitch axis stabilizer in sequence, the pitch axis stabilizer is connected with the focal length adjustment rod, an optical lens is installed on one side of the focal length adjustment rod, a laser shielding rod is installed on the other side, and a detonation transmission fixing device is installed on the laser shielding rod; the laser beam generated by the laser excitation device is directed to the optical lens, and its energy is focused to the focal position, the detonator in the detonation transmission fixing device located at the focal point is burned and detonated when receiving the focused laser energy, thereby triggering the detonating cord for detonation transmission.

[0018] In the present invention, the existing working principle of the three-axis stabilizer is used. The three-axis stabilizer has built-in sensors such as gyroscopes and accelerometers, which can monitor the attitude changes of the device in three axes (heading axis, pitch axis and roll axis) in real time, such as angle, speed, acceleration and other information. When the sensor detects the attitude change of the device, it will transmit this information to the control circuit. The control circuit calculates the angle and direction that need to be compensated based on a specific algorithm, and quickly sends instructions to the motors on the three axes. After receiving the instructions, the motor will generate corresponding reverse motion to offset the original attitude change of the system, so that the device remains in a stable state. The existing working principle of the gravity balance frame is used, and the activity of the two shaft rings is utilized to achieve stability in the height axis direction by using the torque balance.

[0019] In the present invention, the explosion transmission fixing device comprises a support block, in which a detonating cord reserved hole and a detonator reserved hole are provided, an explosion transmission gap is provided between the detonating cord reserved hole and the detonator reserved hole, and a laser irradiation hole is provided on one side of the support block close to the detonator reserved hole, and the laser irradiation hole is connected to the detonator reserved hole.

[0020] In the present invention, the optical lens is mounted on the focal length adjustment rod via a distance adjustment device.

[0021] In the present invention, the distance adjustment device includes a motor, the motor is connected to a screw, the screw is connected to an adjustment block with threads, the adjustment block can slide along the focal length adjustment rod, and the optical lens is installed on the adjustment block. By setting the distance adjustment device, optical lenses of different diameters can be used.

[0022] In the present invention, a U-shaped groove is provided on the focal length adjustment rod, and a boss is provided on the adjustment block, and the boss slides along the focal length adjustment rod.

[0023] A method for detonating a remote laser detonator at sea, comprising the following steps: (1) Start the laser excitation device to generate a high-energy laser beam; (2) Adjust the direction of laser emission so that it is accurately aimed at the directional energy focusing device; (3) The laser beam is irradiated onto the directional energy focusing device, and the energy is focused to the focal point; (4) The detonator at the focal point is burned by the laser, triggering the explosion. The detonating cord transfers the explosion energy underwater, achieving detonation.

[0024] In the present invention, the laser beam generated by the laser excitation device 1 is directed to the directional energy focusing device 2. No matter where the laser beam irradiates the directional energy focusing device 2, its energy will be focused to the focal position. The detonator in the explosion transmission fixing device 3 located at the focal point is burned and detonated when receiving the focused laser energy, thereby triggering the detonating cord to transmit the explosion. During the entire detonation process, the sea surface stabilization device 4 works in real time to reduce the impact of sea surface shaking on the device and ensure the accuracy and reliability of detonation.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A marine long-distance laser detonation device, characterized in that: The invention comprises a laser excitation device located on the shore, and a sea surface stabilizing device is arranged on the sea surface above the large-yield explosion in the water far from the shore, the sea surface stabilizing device comprises a floating body, a supporting gantry is installed on the floating body, a gravity stabilizing frame is installed on the supporting gantry, a connecting rod is installed on the gravity stabilizing frame, a counterweight is arranged at one end of the connecting rod, and a heading axis stabilizer is arranged at the other end, the heading axis stabilizer is connected with the rolling axis stabilizer and the pitching axis stabilizer in sequence, the pitching axis stabilizer is connected with the focal length adjustment rod, an optical lens is arranged on one side of the focal length adjustment rod, a laser shielding rod is arranged on the other side, and a detonation transmission fixing device is arranged on the laser shielding rod; the laser beam generated by the laser excitation device is directed to the optical lens, so that its energy is focused to the focal position, the detonator in the detonation transmission fixing device located at the focal point is burned and detonated when receiving the focused laser energy, and then triggers the detonating cord to transmit the explosion.

2. The marine long-distance laser detonation device according to claim 1 is characterized in that: The explosion transmission fixing device comprises a support block, in which a detonating cord reserved hole and a detonator reserved hole are arranged, an explosion transmission gap is arranged between the detonating cord reserved hole and the detonator reserved hole, and a laser irradiation hole is arranged on one side of the support block close to the detonator reserved hole, and the laser irradiation hole is connected to the detonator reserved hole.

3. The marine long-distance laser detonation device according to claim 1 is characterized in that: The optical lens is installed on the focal length adjustment rod through a distance adjustment device.

4. The marine long-distance laser detonation device according to claim 3 is characterized in that: The distance adjustment device comprises a motor, the motor is connected to a screw rod, the screw rod is connected to an adjustment block provided with threads, the adjustment block can slide along the focal length adjustment rod, and the optical lens is mounted on the adjustment block.

5. The marine long-distance laser detonation device according to claim 4 is characterized in that: The focal length adjustment rod is provided with a U-shaped groove, the adjustment block is provided with a boss, and the boss slides along the focal length adjustment rod.

6. The detonation method of the marine long-distance laser detonation device according to claims 1 to 5 comprises the following steps: (1) Start the laser excitation device to generate a high-energy laser beam; (2) Adjust the direction of laser emission so that it is accurately aimed at the directional energy focusing device; (3) The laser beam is irradiated onto the directional energy focusing device, and the energy is focused to the focal point; (4) The detonator at the focal point is burned by the laser, triggering the explosion. The detonating cord transfers the explosion energy underwater, achieving detonation.

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