Clamp system for marine rocket launching

Abstract

The invention discloses an offshore rocket launching clamp system which comprises a rack and a clamping mechanism arranged on the rack, the clamping mechanism comprises two opposite clamping arms, and a clamping cavity used for containing a rocket is formed between the two clamping arms; the two clamping arms are driven by the driving device to be closed to clamp the rocket body or to be opened to release the rocket body. The clamping device is characterized in that the driving device is provided with a clamping force adjusting control mechanism used for conducting self-adaptive adjustment on clamping force of the clamping mechanism in the clamping process. The device has the advantages that the structure is simple, the clamping force adjusting and controlling mechanism used for conducting self-adaptive adjustment on the clamping force of the clamping mechanism during clamping is arranged on the driving device part on the basis of many unstable factors existing in the marine launching environment, the clamping force is adjusted in real time through the clamping force adjusting and controlling mechanism, and the clamping force adjusting and controlling mechanism is used for adjusting the clamping force in real time; therefore, it is ensured that the rocket body can be stably clamped.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore rocket launching, and in particular to a clamp system for offshore rocket launching. Background Art

[0002] Rocket clamps are usually made of high-strength, lightweight, high-temperature resistant and radio-transparent materials. They are installed on the launch pad of the carrier rocket and are used to clamp the rocket before it is launched to reduce the impact on the rocket body and reduce the vibration of the rocket. In view of the continuous improvement of rocket launch technology and the decreasing space available for rocket recovery on land, people have turned their attention to sea rocket launches. Existing rocket clamp designs are usually only for rockets of specific sizes or relatively stable launch environments. During sea launches, due to the influence of external factors such as wind and waves, the clamping force of the traditional structure of the rocket clamp may be difficult to accurately control, resulting in the inability to effectively clamp the rocket, which in turn affects the success rate and safety of the launch. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a clamp system for launching sea rockets which has a simple structure and is suitable for use at sea.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: A clamp system for launching rockets at sea, comprising a frame and a clamping mechanism arranged on the frame for clamping a rocket, the clamping mechanism comprising two clamping arms arranged opposite to each other, a clamping cavity for accommodating the rocket formed between the two clamping arms, the two clamping arms are driven by a driving device to close to clamp the rocket body or open to release the rocket body, and the driving device has a clamping force adjustment control mechanism for adaptively adjusting the clamping force of the clamping mechanism during clamping.

[0005] The driving device includes a power mechanism and two transmission rods, one of the transmission rods is connected to a corresponding clamping arm, the two ends of the clamping arm are a driving end and a clamping end respectively, one end of the transmission rod is hingedly connected to the driving end of the corresponding clamping arm, and the other end of the transmission rod is provided with a transmission gear, the two transmission gears are meshed and connected, one of the transmission gears is meshed and connected with a driving gear, and the driving gear is driven to rotate by the power mechanism.

[0006] A mounting seat is arranged on the frame, and the transmission gear and the driving gear are rotatably arranged on the mounting seat respectively.

[0007] A support push rod is provided on the clamping arm, one end of the support push rod is hingedly connected to the clamping arm, and the other end of the support push rod is rotatably mounted on the mounting seat, and the center of the hinged connection point between the support push rod and the clamping arm is located between the driving end of the clamping arm and the clamping end of the clamping arm.

[0008] A limit push rod is arranged on the frame so as to be pushed out or retracted, and the limit push rod is arranged between the two clamping arms, and a limit claw is hingedly installed on the limit push rod; when clamping, the limit push rod is pushed out to form a limit support on the side of the rocket body through the limit claw, and the end face of the limit claw opposite to the rocket body is an arc surface matching the side of the rocket body.

[0009] The limit push rod is driven to be pushed out or retracted by a hydraulic cylinder or a pneumatic cylinder.

[0010] The clamping end of the clamping arm is detachably provided with an arrow-pressing plate, and the arrow-pressing plate is hingedly mounted on the clamping end. The end surface of the arrow-pressing plate opposite to the rocket body is an arc-shaped surface matching the side of the rocket body.

[0011] The power mechanism is a driving oil cylinder, and the extended end of the piston rod of the driving oil cylinder is connected to the gear shaft of the driving gear through a coupling.

[0012] The clamping force regulating control mechanism includes a controller, an accumulator, a three-position four-way reversing valve, a relief valve, a pilot oil source block, a pressure gauge, a first hydraulically controlled one-way valve, a second hydraulically controlled one-way valve, a switch valve and a throttle valve; The three-position four-way reversing valve has four working oil ports, namely a first working oil port, a second working oil port, a third working oil port and a fourth working oil port; The inner cavity of the driving oil cylinder is divided into an independent oil inlet chamber and an oil return chamber by a piston arranged on the piston rod, and the accumulator is connected to the oil inlet chamber; The oil inlet of the overflow valve is connected to the second working oil port of the three-position four-way reversing valve to form a common end which is connected through the pilot oil source block, the oil inlet of the first hydraulically controlled one-way valve and the hydraulic control port of the second hydraulically controlled one-way valve are connected to form a common end which is connected to the first working oil port of the three-position four-way reversing valve, the oil outlet of the first hydraulically controlled one-way valve is connected to the oil inlet of the oil inlet chamber, and the oil circuit formed by the oil outlet of the first hydraulically controlled one-way valve and the oil inlet of the oil inlet chamber is provided with The pressure gauge, the oil outlet of the oil return chamber are connected to the oil outlet of the second hydraulically controlled one-way valve, the oil inlet of the second hydraulically controlled one-way valve is connected to the hydraulic control port of the first hydraulically controlled one-way valve to form a common end connected to the third working oil port of the three-position four-way reversing valve, the fourth working oil port of the three-position four-way reversing valve is connected to the oil inlet of the throttle valve, and the common oil path connecting the oil return port of the throttle valve and the oil return port of the overflow valve is connected to the oil inlet of the pilot oil source block through a switch valve; The pressure gauge transmits the real-time pressure data of the corresponding oil circuit to the controller; The accumulator, the three-position four-way reversing valve, the overflow valve, the first hydraulically controlled one-way valve, the second hydraulically controlled one-way valve, the switch valve and the throttle valve are all controlled by the controller.

[0013] The arrow pressing plate is provided with a wireless pressure sensor, and the wireless pressure sensor transmits the monitored real-time pressure data to the controller.

[0014] Compared with the prior art, the advantages of the present invention are: simple structure. Based on the many unstable factors existing in the sea launch environment, a clamping force adjustment control mechanism is provided in the driving device part for adaptively adjusting the clamping force of the clamping mechanism during clamping. The clamping force adjustment control mechanism is used to adjust the clamping force in real time, thereby ensuring that the rocket body can be stably clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention with the frame removed; Figure 2 It is the hydraulic principle diagram of the present invention; Figure 3 A schematic diagram of the three-dimensional structure of the rocket clamped in the present invention; Figure 4 It is a hydraulic oil circuit diagram of the present invention in the rocket clamping state; Figure 5 It is a hydraulic oil circuit diagram of the present invention in a clamping and holding state; Figure 6 This is a diagram of the hydraulic oil circuit in the released state of the present invention. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below with reference to the accompanying drawings.

[0017] As shown in the figure, a clamp system for launching a rocket at sea includes a frame 1 and a clamping mechanism arranged on the frame 1 for clamping a rocket A. The clamping mechanism includes two clamping arms 2 arranged opposite to each other. A clamping cavity 20 for accommodating the rocket A is formed between the two clamping arms 2. The two clamping arms 2 are driven by a driving device to close to clamp the body of the rocket A or to open to release the body of the rocket A. The driving device has a clamping force adjustment control mechanism for adaptively adjusting the clamping force of the clamping mechanism during clamping.

[0018] Specifically, the driving device includes a power mechanism 3 and two transmission rods 4, one transmission rod 4 is connected to a clamping arm 2, and the two ends of the clamping arm 2 are respectively a driving end 21 and a clamping end 22, one end of the transmission rod 4 is hingedly connected to the driving end 21 of the corresponding clamping arm 2, and the other end of the transmission rod 4 is provided with a transmission gear 41, and the two transmission gears 41 are meshed and connected, and one of the transmission gears 41 is meshed and connected with a driving gear 5, and the driving gear 5 is driven to rotate by the power mechanism 3. The above-mentioned driving device has a simple structure, and the driving transmission is reliable and stable. The driving gear 5 is driven to rotate by the power mechanism 3, and the driving gear 5 drives the transmission gear 41 meshed therewith to rotate, so as to realize the closing of the two clamping arms 2 to clamp the rocket A body or to open the rocket A body to release the rocket A body.

[0019] Specifically, a mounting seat 10 is provided on the frame 1, and the transmission gear 41 and the driving gear 5 are rotatably provided on the mounting seat 10. The mounting seat 10 provides stable installation and positioning for various components of the driving device.

[0020] Specifically, the clamping arm 2 is provided with a support push rod 6, one end of which is hingedly connected to the clamping arm 2, and the other end of which is rotatably mounted on the mounting seat 10, and the center of the hinged connection point between the support push rod 6 and the clamping arm 2 is located between the driving end 21 of the clamping arm 2 and the clamping end 22 of the clamping arm 2. The clamping arm 2 is stably mounted and closed and opened stably, and when clamped and used, the rocket A body is stably and firmly clamped.

[0021] Specifically, support push rods 6 are respectively installed on the upper and lower parts of the clamping arm 2, and the clamping arm 2 is stably installed to overcome gravity through the upper and lower support push rods 6.

[0022] Specifically, a limited push rod 111 is provided on the frame 1 so as to be pushed out or retracted, and the limited push rod 111 is provided between the two clamping arms 2, and a limited claw 112 is hingedly installed on the limited push rod 111; when clamping, the limited push rod 111 is pushed out to form a limited support on the side of the rocket A arrow body through the limited claw 112, and the end surface of the limited claw 112 opposite to the rocket A arrow body is an arc surface that matches the side of the rocket A arrow body. The limited claw 112 forms another fulcrum for the side of the rocket A arrow body, and the contact area is large. It cooperates with the two clamping arms 2 to form a three-point support clamping, which is more stable and reliable. The limited claw 112 is hingedly installed to adapt to different support positions, so as to achieve a better fit with the rocket A arrow body.

[0023] Specifically, the limit push rod 111 is driven to push out or retract by a hydraulic cylinder or an air cylinder (not shown in the figure). The structure is simple and the use is reliable and stable. The above hydraulic cylinder or air cylinder is controlled by a controller.

[0024] Specifically, the clamping end 22 of the clamping arm 2 is detachably provided with an arrow pressing plate 7, which is hingedly mounted on the clamping end 22, and the end surface of the arrow pressing plate 7 opposite to the rocket A body is an arcuate surface that matches the side of the rocket A body. The arrow pressing plate 7 is used to increase the contact area with the rocket A body, and cooperates with the limiting claw 112 to achieve a more stable clamping. The arrow pressing plate 7 is detachably mounted to adapt to clamping different rockets A, and has good versatility; the arrow pressing plate 7 is hingedly mounted to adapt to different clamping positions, and achieves a better fit clamping with the rocket A body.

[0025] Specifically, the power mechanism 3 is a driving oil cylinder, and the extended end of the piston rod 31 of the driving oil cylinder is connected to the gear shaft 51 of the driving gear 5 through a coupling (not shown in the figure). The linear motion of the piston rod 31 is converted into the rotational motion of the gear shaft through the cooperation of the coupling, the piston rod 31 and the gear shaft 51, which is a common structure in the mechanical field.

[0026] Specifically, the clamping force adjustment control mechanism includes a controller (not shown in the figure), an accumulator Y1, a three-position four-way reversing valve Y2, a relief valve Y3, a pilot oil source block Y4, a pressure gauge Y5, a first hydraulically controlled one-way valve Y6, a second hydraulically controlled one-way valve Y7, a throttle valve Y8 and a switch valve Y9; The three-position four-way reversing valve Y2 has four working oil ports, namely the first working oil port Y2-1, the second working oil port Y2-2, the third working oil port Y2-3 and the fourth working oil port Y2-4; The inner cavity of the driving oil cylinder is divided into an independent oil inlet chamber 301 and an oil return chamber 302 by a piston arranged on the piston rod 31, and the accumulator Y1 is connected to the oil inlet chamber 301; The oil inlet of the overflow valve Y3 is connected to the second working oil port Y2-2 of the three-position four-way reversing valve Y2 to form a common end which is connected through the pilot oil source block Y4, the oil inlet of the first hydraulically controlled one-way valve Y6 is connected to the hydraulic control port Y7-1 of the second hydraulically controlled one-way valve Y7 to form a common end which is connected to the first working oil port Y2-1 of the three-position four-way reversing valve Y2, the oil outlet of the first hydraulically controlled one-way valve Y6 is connected to the oil inlet of the oil inlet chamber 301, and the oil circuit formed by the oil outlet of the first hydraulically controlled one-way valve Y6 and the oil inlet of the oil inlet chamber 301 is provided with Pressure gauge Y5, the oil outlet of the oil return chamber 302 is connected to the oil outlet of the second hydraulically controlled one-way valve Y7, the oil inlet of the second hydraulically controlled one-way valve Y7 is connected to the hydraulic control port Y6-1 of the first hydraulically controlled one-way valve Y6 to form a common end connected to the third working oil port Y2-3 of the three-position four-way reversing valve Y2, the fourth working oil port Y2-4 of the three-position four-way reversing valve Y2 is connected to the oil inlet of the throttle valve Y8, the common oil path connecting the oil return port of the throttle valve Y8 and the oil return port of the overflow valve Y3 is connected to the oil inlet of the pilot oil source block Y4 through a switch valve Y9; Pressure gauge Y5 transmits the real-time pressure data of the corresponding oil circuit to the controller. ; The accumulator Y1, the three-position four-way reversing valve Y2, the relief valve Y3, the first hydraulically controlled one-way valve Y6, the second hydraulically controlled one-way valve Y7, the switch valve Y9 and the throttle valve Y8 are all controlled by the controller.

[0027] Specifically, in order to achieve more precise control of the clamping force, wireless pressure sensors can be installed on the arrow pressure plate 7 and the limit claw 112 respectively, and the monitored real-time pressure data can be transmitted to the controller through the wireless pressure sensor. The controller has a preset corresponding pressure value. When the controller detects that the pressure value at the corresponding position is insufficient, the corresponding hydraulic cylinder or air cylinder and the driving oil cylinder are driven to work.

[0028] Before specific use, the accumulator Y1 will store energy in advance, and the controller will preset a clamping pressure value corresponding to the stable clamping of rocket A. After the positioning and installation of rocket A is completed, the controller controls the hydraulic cylinder or air cylinder used to drive the limit push rod 111 to move, so that the limit claw 112 supports the corresponding side of the rocket A body, and the hydraulic oil is injected into the pilot oil source block Y4. The controller controls the switch valve Y9 to open, and the three-position four-way reversing valve is switched to the right position, that is, the first working oil port Y2-1 and the fourth working oil port Y2-2 of the three-position four-way reversing valve are switched to the right position. The working oil port Y2-4 is connected, the second working oil port Y2-2 and the third working oil port Y2-3 are connected, the oil passes through the first hydraulically controlled one-way valve Y6 normally, and the hydraulic oil enters the oil inlet chamber 301 of the driving oil cylinder, pushing the piston rod 31 to move, thereby driving the driving gear 5 to rotate, driving the two clamping arms 2 to close and clamp the rocket A body, and the pressure gauge Y5 monitors the pressure value of the corresponding oil circuit and transmits it to the controller. When the controller monitors that the pressure value of the pressure gauge Y5 reaches the preset clamping pressure value, it indicates that the clamping is completed. The oil enters the hydraulic control port Y7-1 of the second hydraulically controlled one-way valve Y7 to push the valve core of the second hydraulically controlled one-way valve Y7 open, and the oil in the oil return chamber 302 of the driving oil cylinder returns to the pilot oil source block Y4 through the second hydraulically controlled one-way valve Y7, the third working oil port Y2-3 of the three-position four-way reversing valve, and the second working oil port Y2-2. During operation, the overflow valve is used to adjust the pressure in the entire hydraulic system to ensure that the pressure in the system does not exceed the safe value. The throttle valve is used to slow down the flow rate of the liquid to prevent hydraulic shock.

[0029] After the above clamping is completed, when the clamping is maintained, the controller controls the three-position four-way reversing valve to switch to the middle position, that is, to close all working oil ports. At the same time, the controller controls the switch valve Y9 to close. There is no pressure oil in the circuits of the two hydraulically controlled one-way valves, which is equivalent to ordinary one-way valves. At this time, the oil does not pass, thereby achieving interlocking; the controller continuously monitors the pressure data of the pressure gauge Y5. When it is lower than the preset clamping pressure value, the accumulator Y1 pushes the oil into the hydraulic system, and the oil enters the oil inlet chamber 301 of the drive cylinder, releasing the stored energy to push the piston rod 31; when it is higher than the preset clamping pressure value, the accumulator Y1 works, compresses the gas therein, and causes the oil to flow out of the oil inlet chamber 301 and enter the accumulator Y1, thereby pulling the piston rod 31 back.

[0030] When the rocket A is released, the hydraulic oil is injected into the pilot oil source block Y4, the controller controls the switch valve Y9 to open, and the controller controls the three-position four-way reversing valve to switch to the left position, that is, the first working oil port Y2-1 and the second working oil port Y2-2 of the three-position four-way reversing valve are connected, and the third working oil port Y2-3 and the fourth working oil port Y2-4 are connected. The oil passes through the second hydraulically controlled one-way valve Y7 normally and enters the oil return chamber 302 of the driving oil cylinder, pushing the piston rod 31 to move, thereby driving the driving gear 5 to rotate in the opposite direction, and driving the two clamping arms 2 to release. The oil enters the hydraulic control port Y6-1 of the first hydraulically controlled one-way valve Y6 to push the valve core of the first hydraulically controlled one-way valve Y6 open, so that the oil in the liquid inlet chamber 301 can return to the pilot oil source block Y4 through the first hydraulically controlled one-way valve Y6, the first working oil port Y2-1, and the second working oil port Y2-2 of the three-position four-way reversing valve.

Claims

1. A clamp system for launching a rocket at sea, comprising a frame and a clamping mechanism arranged on the frame for clamping a rocket, wherein the clamping mechanism comprises two clamping arms arranged opposite to each other, a clamping cavity for accommodating the rocket is formed between the two clamping arms, and the two clamping arms are driven by a driving device to close to clamp the rocket body or open to release the rocket body, characterized in that The driving device has a clamping force regulating control mechanism for adaptively adjusting the clamping force of the clamping mechanism during clamping.

2. A clamp system for launching a rocket at sea as claimed in claim 1, characterized in that The driving device includes a power mechanism and two transmission rods, one of the transmission rods is connected to a corresponding clamping arm, the two ends of the clamping arm are a driving end and a clamping end respectively, one end of the transmission rod is hingedly connected to the driving end of the corresponding clamping arm, and the other end of the transmission rod is provided with a transmission gear, the two transmission gears are meshed and connected, one of the transmission gears is meshed and connected with a driving gear, and the driving gear is driven to rotate by the power mechanism.

3. A clamp system for launching a rocket at sea as claimed in claim 2, characterized in that A mounting seat is arranged on the frame, and the transmission gear and the driving gear are rotatably arranged on the mounting seat respectively.

4. A clamp system for launching a rocket at sea as claimed in claim 3, characterized in that A support push rod is provided on the clamping arm, one end of the support push rod is hingedly connected to the clamping arm, and the other end of the support push rod is rotatably mounted on the mounting seat, and the center of the hinged connection point between the support push rod and the clamping arm is located between the driving end of the clamping arm and the clamping end of the clamping arm.

5. A clamp system for launching a rocket at sea as claimed in claim 1, characterized in that A limit push rod is arranged on the frame so as to be pushed out or retracted, and the limit push rod is arranged between the two clamping arms, and a limit claw is hingedly installed on the limit push rod; when clamping, the limit push rod is pushed out to form a limit support on the side of the rocket body through the limit claw, and the end face of the limit claw opposite to the rocket body is an arc surface matching the side of the rocket body.

6. A clamp system for launching a rocket at sea as claimed in claim 5, characterized in that The limit push rod is driven to be pushed out or retracted by a hydraulic cylinder or a pneumatic cylinder.

7. A clamp system for launching a rocket at sea as claimed in claim 1, characterized in that The clamping end of the clamping arm is detachably provided with an arrow-pressing plate, and the arrow-pressing plate is hingedly mounted on the clamping end. The end surface of the arrow-pressing plate opposite to the rocket body is an arc-shaped surface matching the side of the rocket body.

8. A clamp system for launching a rocket at sea as claimed in claim 7, characterized in that The power mechanism is a driving oil cylinder, and the extended end of the piston rod of the driving oil cylinder is connected to the gear shaft of the driving gear through a coupling.

9. A clamp system for launching a rocket at sea as claimed in claim 8, characterized in that The clamping force regulating control mechanism includes a controller, an accumulator, a three-position four-way reversing valve, a relief valve, a pilot oil source block, a pressure gauge, a first hydraulically controlled one-way valve, a second hydraulically controlled one-way valve, a switch valve and a throttle valve; The three-position four-way reversing valve has four working oil ports, namely a first working oil port, a second working oil port, a third working oil port and a fourth working oil port; The inner cavity of the driving oil cylinder is divided into an independent oil inlet chamber and an oil return chamber by a piston arranged on the piston rod, and the accumulator is connected to the oil inlet chamber; The oil inlet of the overflow valve is connected to the second working oil port of the three-position four-way reversing valve to form a common end which is connected through the pilot oil source block, the oil inlet of the first hydraulically controlled one-way valve and the hydraulic control port of the second hydraulically controlled one-way valve are connected to form a common end which is connected to the first working oil port of the three-position four-way reversing valve, the oil outlet of the first hydraulically controlled one-way valve is connected to the oil inlet of the oil inlet chamber, and the oil circuit formed by the oil outlet of the first hydraulically controlled one-way valve and the oil inlet of the oil inlet chamber is provided with The pressure gauge, the oil outlet of the oil return chamber are connected to the oil outlet of the second hydraulically controlled one-way valve, the oil inlet of the second hydraulically controlled one-way valve is connected to the hydraulic control port of the first hydraulically controlled one-way valve to form a common end connected to the third working oil port of the three-position four-way reversing valve, the fourth working oil port of the three-position four-way reversing valve is connected to the oil inlet of the throttle valve, and the common oil path connecting the oil return port of the throttle valve and the oil return port of the overflow valve is connected to the oil inlet of the pilot oil source block through a switch valve; The pressure gauge transmits the real-time pressure data of the corresponding oil circuit to the controller; The accumulator, the three-position four-way reversing valve, the overflow valve, the first hydraulically controlled one-way valve, the second hydraulically controlled one-way valve, the switch valve and the throttle valve are all controlled by the controller.

10. A clamp system for launching a rocket at sea as claimed in claim 8, characterized in that The arrow pressing plate is provided with a wireless pressure sensor, and the wireless pressure sensor transmits the monitored real-time pressure data to the controller.

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