Centrifugal launching test device and working method

Abstract

The invention provides a centrifugal launching test device and a working method. The centrifugal launching test device comprises a rotating blade component, a main shaft component, a supporting rack component and a bolt unlocking component, a hydraulic pump station is arranged outside; the supporting rack components are fixed on a solid ground through chemical anchor bolts, the main shaft component is mounted on the symmetrically mounted supporting rack components, and the rotating blade component is connected with the main shaft component and is driven by the main shaft component; and the bolt unlocking part is mounted at the top of the rotating blade part. The device can adapt to the use working conditions of simulation targets with different sizes and weights and different speeds and emission angles.

Description

Technical Field

[0001] The present application relates to the field of centrifugal launch technology, and in particular to a centrifugal launch test device and a working method. Background Art

[0002] The centrifugal launch device is a hypothetical launch system that can give the target object greater kinetic energy through centrifugal launch. It is used in various experimental situations. For the projectile application of the target object, the centrifugal launch method can save fuel and increase the load. It can be used for aerospace, aviation and weapons experiments.

[0003] In the prior art, researchers have also achieved good results in the research and development of centrifugal launchers. For example, the patent with application number 202221743326.X mentions a recoil-driven centrifugal launcher, which drives the fan blades to rotate the rotating main shaft through the recoil device, and the rotating main shaft drives the centrifugal mountain to rotate synchronously, and releases the projectile through the release mechanism. However, the current centrifugal launcher still has certain problems, such as the lack of practicality of the implementation structure, which is not suitable for structural launch at higher speeds and larger masses, and cannot be accurately adjusted, making it difficult to meet a variety of working conditions. Summary of the invention

[0004] The present application provides a centrifugal launch test device and a working method, which can be used to solve the technical problem that the centrifugal launch device is not suitable for launching structures at higher speeds and larger masses and cannot be accurately adjusted.

[0005] The mechanical structure unit of the centrifugal launch test device used in the present invention comprises a rotating blade component, a main shaft component, a support frame component, and a latch unlocking component; the hydraulic control unit comprises a hydraulic pump station, a motor control circuit, a blade extension control circuit, a latch unlocking control circuit, hydraulic pipelines and cables;

[0006] The rotating blade components include a main blade, a telescopic blade, a telescopic blade cylinder, a blade hydraulic valve group, and a drag chain. The telescopic blade is connected to the main blade through roller linear guides installed at both ends. The two ends of the blade telescopic cylinder are respectively fixed to the telescopic blade and the main blade. The movement of the cylinder can realize the linear sliding of the telescopic blade. The hydraulic valve group can provide a suitable pressure source for the blade telescopic cylinder and the latch unlocking cylinder.

[0007] The main shaft components include main shaft, bearings, hydraulic motors, couplings, hydraulic-electric combined slip rings, rotary encoders, and support brackets. The main shaft is placed between the support brackets through bearings, and the two sides are connected to the hydraulic motor, hydraulic-electric slip ring, and encoder through couplings.

[0008] The supporting frame components are tripod-type supporting platforms, which are symmetrically arranged.

[0009] The latch unlocking components include a projectile model, a connecting rod latch, a latch guide sleeve, a latch cylinder, and a spring mechanism. The latch part passes through the latch guide sleeve to lock the simulated target. A spring booster is set at the front of the target to prevent the simulated target from rolling over during the egg head flying out. One end of the latch cylinder is fixedly connected to the connecting rod latch, and the other end is fixedly connected to the telescopic blade connection block. The two latches are connected by a connecting rod mechanism, and the plugging and unlocking of the latch is controlled by an oil cylinder.

[0010] The hydraulic pump station is used to provide the hydraulic energy system, and can provide a suitable pressure source for the blade extension cylinder and the latch unlocking cylinder through the hydraulic valve group;

[0011] The motor control circuit can accurately control the speed of the hydraulic motor.

[0012] The blade extension and retraction control circuit realizes stepless adjustment and accurate positioning of the rotation radius.

[0013] The latch unlocking control loop can quickly unlock the target object at the right time.

[0014] The electrical control system can complete the speed, blade position, and rotation angle. The system pressure and other information are collected to complete the speed control, blade rotation radius control, separation unlocking control and other control units. Through the position feedback of the proportional servo valve and the blade telescopic cylinder, the position of the telescopic blade is accurately controlled, and then the rotation radius of the simulated target is adjusted to achieve stepless adjustment of the rotation radius within 1m to 2m. The valve group is equipped with a balance valve and a hydraulic lock to ensure that the blade telescopic cylinder can be locked in the target position, and there will be no centrifugal inertia causing the cylinder to run out of position. Through the rapid unlocking of the hydraulic motor with the photoelectric encoder and the high-speed switch valve, the simulated target's ejection angle is accurately controlled to achieve any adjustment within the range of 90° of the separation height and low angle. The motor speed is controlled with high precision through the proportional servo valve and encoder, and the speed of the mechanism is accurately controlled within the speed range. In this way, the whole process of the launch test can be accurately controlled, which can adapt to the use conditions of simulated targets of different sizes and weights, and different speeds and launch angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a mechanical structure provided by an embodiment of the present invention;

[0016] Figure 2 A schematic structural diagram of a rotating blade component 10 provided in an embodiment of the present invention;

[0017] Figure 3 A schematic diagram of the structure of a spindle component 20 provided in an embodiment of the present invention;

[0018] Figure 4 A schematic diagram of the structure of a support frame component 30 provided in an embodiment of the present invention;

[0019] Figure 5 A schematic diagram of the structure of a latch unlocking component 40 provided in an embodiment of the present invention;

[0020] Figure 6 A schematic diagram of a hydraulic control circuit valve block provided in an embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of a hydraulic control system provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0023] The following first introduces the embodiments of the present application in conjunction with the accompanying drawings.

[0024] The embodiment of the present invention provides a Figure 1 The centrifugal launch test device shown includes a mechanical structure unit, a hydraulic control unit, and is additionally configured with a universal hydraulic pump station that meets the pressure and flow requirements.

[0025] The mechanical structure unit includes structures such as a rotating blade component 10, a main shaft component 20, a support frame component 30, and a latch unlocking component 40; the support frame component 30 is fixed to a solid ground by a chemical anchor bolt, the main shaft component 20 is installed on the symmetrically installed support frame component 30, the rotating blade component 10 is connected to the main shaft component 20 and is driven by the main shaft component 20; the latch unlocking component 40 is installed on the top of the rotating blade component 10.

[0026] The rotating blade component 10 is as follows Figure 2 As shown, the rotating blade component 10 is a centrally symmetrical structure; the rotating blade component 10 includes a main blade 11, a telescopic blade 12, a telescopic blade cylinder 13, and a blade hydraulic valve group 14. The telescopic blade 12 is connected to the main blade 11 through roller linear guides installed at both ends. The two ends of the blade telescopic cylinder 13 are respectively fixed to the telescopic blade 12 and the main blade 11. The movement of the blade telescopic cylinder 13 realizes the linear sliding of the telescopic blade 12. The hydraulic valve group 14 provides a suitable pressure source for the blade telescopic cylinder and the latch unlocking cylinder; the blade telescopic cylinder 13 is provided with a built-in linear displacement sensor to detect the real-time position of the cylinder to achieve precise position control. The blade hydraulic valve group 14 is provided with a pressure sensor to detect the pressure on both sides of the cylinder; one end of the blade telescopic cylinder 13 is installed with the main blade 11 through an earring, and the other end is installed with the telescopic blade 12 connecting block through a universal bearing.

[0027] The spindle component 20 is as follows Figure 3As shown, it includes a main shaft 21, a bearing 22, a hydraulic motor 23, a coupling 24, a hydraulic-electric combined slip ring 25, a rotary encoder 26, and a support bracket 27; the main shaft component 20 is provided with two groups of bearing seats 27 and a main shaft 21 as the main load-bearing structure, the main shaft 21 is connected to the rotating blade 10 through a spline, and a group of double-row tapered roller bearings 22 are arranged on each side to withstand the centrifugal force when the blade 10 rotates; the hydraulic motor 23 is installed on the bearing seat 27, and the rotating shaft is connected to the main shaft 21 through the coupling 24 to drive the main shaft 21 to rotate; the hydraulic-electric combined slip ring 25 is arranged at the other end of the main shaft 21 to realize the function of transmitting hydraulic energy and electrical signals to the rotating blades, the rotating part of the slip ring is fixedly connected to the main shaft 21 through screws, the stator of the slip ring is fixedly connected to the support bracket through a fixed bracket, the tail of the slip ring rotating shaft extends out to be connected in series with the rotary encoder 26, and the stator of the rotary encoder 26 is installed on the stator of the slip ring to detect the rotation speed and angle of the rotating shaft.

[0028] The support frame 30 is as follows Figure 4 As shown, the support frame 30 is a symmetrical structure used for supporting the centrifugal test equipment and the operation of the blades, including a motor support frame 31, a slip ring support frame 32 and a base frame 33; the base frame 33 is a truss structure formed by connecting hollow steel pipes, and a transverse steel pipe is arranged between the vertical frames for reinforcement, which has high stability and anti-torsion ability. The motor support frame 31 and the slip ring support frame 32 are separable bottom plates to facilitate installation and leveling and concentricity.

[0029] The latch unlocking component 40 is as follows Figure 5 The simulation target 41, connecting rod latch 42, latch guide sleeve 43, latch oil cylinder 44, and spring mechanism 45 are shown. The latch portion of the connecting rod latch 42 passes through the latch guide sleeve 43 to lock the simulation target 41, resist the pulling of the large centrifugal force during the rotation of the blade, and prevent the simulation target 41 from being thrown out during the rotation;

[0030] A spring mechanism 45 assisting device is provided at the head of the simulated target 41 to apply a certain centrifugal force to the simulated target 41 to prevent the simulated target 41 from rolling over during its flight;

[0031] One end of the latch cylinder 44 is fixedly connected to the connecting rod latch 42, and the other end is fixedly connected to the connecting block of the telescopic blade 12. A latch guide sleeve 43 is set on each side of the latch cylinder 44. The two latches are connected by a connecting rod mechanism and the plugging and unlocking of the latch is controlled by an oil cylinder 44. When the centrifugal test equipment reaches the specified position during the rotation process, the control hydraulic valve group reacts quickly, and the latch cylinder 44 drives the connecting rod latch 42 to be quickly pushed out to realize the unlocking function of the simulated target. The two extreme positions of the latch 42 are provided with telescopic proximity switches 46 to detect the locked and unlocked states of the latch.

[0032] The hydraulic control unit includes a hydraulic pump station, a motor control circuit, a blade extension and retraction control circuit, a latch unlocking control circuit, hydraulic pipes and cables. The hydraulic pump station is a separate component and any general hydraulic pump station that meets the pressure and flow requirements can be used. The motor control circuit, blade extension and retraction control circuit, latch unlocking control circuit, etc. are all installed on the blade and integrated into the blade valve block, such as Figure 6 The function of the hydraulic pump station is to provide the hydraulic system with power sources of different directions, pressures and flows, and to regulate the system temperature rise and system impact; the transition valve block is used to connect the main pump station and the rotating blade circuit, and plays the role of switching the circuits of each part and alleviating the hydraulic impact.

[0033] The motor control circuit is used to provide power for the blade rotation and is equipped with functions such as motor braking, motor cleaning, and load protection. The blade extension circuit is used to adjust the blade extension length and lock the extension cylinder through the hydraulic lock, tightly sealing the oil in the two chambers of the hydraulic cylinder so that the hydraulic cylinder cannot be moved by external force, so that the hydraulic cylinder plays a supporting role. The latch unlocking circuit is used to control the cylinder to quickly pull out the latch to realize the function of simulating target unlocking, such as Figure 7 shown.

[0034] The general working process of the working method of the centrifugal launch test device of the embodiment of the present invention is: the rotating blades are directly driven by the hydraulic motor to accelerate the blades to the separation speed, and at the same time the blades are extended and retracted to a specified radius. After reaching the specified angle, the latch of the latch component is controlled to open, and the small object is ejected by the rotating centrifugal motion.

[0035] The centrifugal launch test device can adjust the rotation speed and the rotation radius simultaneously during the rotation process.

[0036] The centrifugal launch test device can realize centrifugal launch work at different angles, different rotation radii, different rotation speeds and different linear speeds through precise and high-response control of the unlocking mechanism and the rotating mechanism.

[0037] The above-described embodiments of the present application do not constitute a limitation on the protection scope of the present application.

Claims

1. A centrifugal launch test device, characterized in that: The device comprises: A rotating blade component (10), a main shaft component (20), a support frame component (30), and a latch unlocking component (40); and an externally configured hydraulic pump station; The support frame component (30) is fixed on a solid ground by chemical anchor bolts, the main shaft component (20) is installed on the symmetrically installed support frame component (30), the rotating blade component (10) is connected to the main shaft component (20) and is driven by the main shaft component (20); and the latch unlocking component (40) is installed on the top of the rotating blade component (10).

2. The device according to claim 1, characterized in that The rotating blade component (10) is a centrosymmetric structure; The rotating blade component (10) comprises a main blade (11), a telescopic blade (12), a telescopic blade oil cylinder (13), and a blade hydraulic valve group (14); The telescopic blade (12) is connected to the main blade (11) through roller linear guide rails installed at both ends. The two ends of the blade telescopic oil cylinder (13) are respectively fixedly connected to the telescopic blade (12) and the main blade (11). The movement of the blade telescopic oil cylinder (13) realizes the linear sliding of the telescopic blade (12). The hydraulic valve group (14) provides a pressure source for the blade telescopic oil cylinder and the latch unlocking oil cylinder. The blade telescopic oil cylinder (13) is provided with a built-in linear displacement sensor to detect the real-time position of the oil cylinder. The blade hydraulic valve group (14) is provided with a pressure sensor to detect the pressure on both sides of the oil cylinder. One end of the blade telescopic oil cylinder (13) is installed with the main blade (11) through an earring, and the other end is installed with the telescopic blade (12) connecting block through a universal bearing.

3. The device according to claim 1, characterized in that The main shaft component (20) includes a main shaft (21), a bearing (22), a hydraulic motor (23), a coupling (24), a hydraulic-electric combined slip ring (25), a rotary encoder (26), and a support bracket (27); The main shaft component (20) is provided with two sets of bearing seats (27) and a main shaft (21) as a main load-bearing structure. The main shaft (21) is connected to the rotating blade (10) through a spline. A set of double-row tapered roller bearings (22) are provided on each side to withstand the centrifugal force when the blade (10) rotates. A hydraulic motor (23) is mounted on a bearing seat (27), and a rotating shaft is connected to a main shaft (21) through a coupling (24) to drive the main shaft (21) to rotate; a hydraulic-electric combined slip ring (25) is arranged at the other end of the main shaft (21); a rotating part of the slip ring is fixedly connected to the main shaft (21) through screws; a stator of the slip ring is fixedly connected to a supporting support through a fixed support; a rear end of the slip ring rotating shaft extends out to be serially connected to a rotary encoder (26); a stator of the rotary encoder (26) is mounted on the stator of the slip ring to detect a rotating shaft speed and angle.

4. The device according to claim 1, characterized in that The support stand (30) is used to bear the weight of the centrifugal test equipment and support the operation of the blades; The support frame (30) is a symmetrical structure, including a motor support frame (31), a slip ring support frame (32) and a base frame (33); the base frame (33) is a truss structure formed by connecting hollow steel pipes, and transverse steel pipes are arranged between the vertical frames for reinforcement; The motor support stand (31) and the slip ring support stand (32) are separable bottom plates.

5. The device according to claim 1, characterized in that The latch unlocking component (40) comprises a simulated target (41), a connecting rod latch (42), a latch guide sleeve (43), a latch oil cylinder (44), and a spring mechanism (45); The latch portion of the connecting rod latch (42) passes through the latch guide sleeve (43) to lock the simulated target (41), resist the pulling of the centrifugal force during the rotation of the blade, and prevent the simulated target (41) from being thrown out during the rotation; A spring mechanism (45) assisting device is arranged at the head of the simulated target (41) to apply centrifugal force to the simulated target (41) to prevent the simulated target (41) from rolling over during its flight; One end of the latch oil cylinder (44) is fixedly connected to the connecting rod latch (42), and the other end is fixedly connected to the telescopic blade (12) connection block. A latch guide sleeve (43) is provided on each side of the latch oil cylinder (44). The two latches are connected by a connecting rod mechanism, and the plugging, pulling and unlocking of the latches are controlled by an oil cylinder (44). When the centrifugal test equipment reaches a designated position during its rotation, the hydraulic valve group is controlled to react, and the latch cylinder (44) drives the connecting rod latch (42) to be quickly pushed out, thereby realizing the unlocking function of the simulated target; Two extreme positions of the latch (42) are provided with telescopic proximity switches (46) to detect the locked and unlocked states of the latch.

6. A method for operating a centrifugal launch test device, the method being used to control the operation of any device in claims 1 to 5, characterized in that: The method is controlled by a hydraulic control unit, The hydraulic control unit includes a hydraulic pump station, a motor control circuit, a blade extension and retraction control circuit, a latch unlocking control circuit, and matching hydraulic pipelines and cables, and a hydraulic pump station; The motor control circuit, blade extension and retraction control circuit, and latch unlocking control circuit are all installed on the blade and integrated into the blade valve block; The hydraulic pump station is used to provide the hydraulic system with power sources of different directions, pressures and flows, and to regulate the system temperature rise and system impact; the transition valve block is used to connect the main pump station and the rotating blade circuit, and plays the role of switching the circuits of various parts and alleviating hydraulic impact. The motor control circuit is used to provide power for the blade rotation and is equipped with motor braking, motor cleaning and load protection functions; The blade extension circuit is used to adjust the blade extension length and lock the extension cylinder through the hydraulic lock, tightly sealing the oil in the two chambers of the hydraulic cylinder so that the hydraulic cylinder cannot move due to external force, and the hydraulic cylinder plays a supporting role. The latch unlocking circuit is used to control the oil cylinder to quickly pull out the latch, realizing the function of simulating target unlocking.

7. The method according to claim 6, characterized in that The method comprises: The motor control circuit hydraulic motor directly drives the rotating blades to accelerate the blades to the separation speed; the blade extension circuit controls the blades to extend and retract to a specified radius; After reaching the specified angle, the latch unlocking circuit controls the latch component to open, and uses the rotating centrifugal motion to eject the small object.

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