A catapult vehicle, hydraulic system and recoil force delivery control method

Abstract

The application discloses a catapult vehicle, a hydraulic system and a recoil force transmission control method, and adopts a sliding block, a storage and transportation ammunition box, a sliding frame, a sliding oil cylinder, an erecting frame, a pitching oil cylinder, a rotary table, a base and a sliding guide rail, the storage and transportation ammunition box is installed on the sliding frame, the sliding guide rail is connected on the upper surface of the erecting frame through bolts, the sliding block is connected on the lower surface of the sliding frame through bolts, and the sliding guide rail and the sliding block form a sliding pair through mutual cooperation; the piston cylinder end hinge base of the sliding oil cylinder is connected on the erecting frame, the piston rod end of the sliding oil cylinder is connected with the sliding frame, and the sliding frame is driven to slide relative to the erecting frame through the extension and contraction of the sliding oil cylinder; the two ends of the pitching oil cylinder are connected with the rotary table and the erecting frame respectively; the rotary table is installed on the base, and the erecting frame is hinged with the rotary table. The whole vehicle has high lightweight degree, and has strong recoil force buffering capacity.

Description

Technical Field

[0001] This invention relates to the field of catapult control technology, and in particular discloses a catapult vehicle, a hydraulic system, and a recoil transmission control method. Background Technology

[0002] A schematic diagram of a traditional catapult operation is shown below. Figure 1 As shown, its structure mainly consists of an erecting frame 101, a pitch cylinder 102, a turntable 103, a base 104, and a storage and ejection box 105. The storage and ejection box 105 is mounted on the erecting frame 101. One end of the pitch cylinder 102 is hinged to the erecting frame 101, and the other end is hinged to the turntable 103; the rear hinge point of the erecting frame 101 is hinged to the turntable 103. The turntable 103 is mounted on the base 104; the pitching action is achieved by extending the pitch cylinder 102. During ejection, the recoil force is transmitted to the chassis via the erecting frame 101, the pitch cylinder 102, the turntable 103, and the base 104.

[0003] Traditional catapult recoil transmission control has the following technical drawbacks:

[0004] 1. Catapult vehicles require high strength and rigidity, and are generally heavy. At the moment of ejection, the ejection device withstands the recoil impact, and the catapult vehicle must have sufficient strength and rigidity to resist the large impact load;

[0005] 2. Weak recoil buffering capacity, unable to adapt to large-caliber projectiles. The recoil force is transmitted to the equipment itself, and the connections between the various components are all rigid connections. The rigid connection structure has weak buffering capacity, and the huge impact load generated during the launch of large-caliber projectiles will cause irreversible damage to the rigid connection structure.

[0006] 3. The ammunition storage box experiences significant disturbance at the moment of ejection. During continuous ejection operations, the ammunition storage box is subjected to recoil impact, generating periodic decaying disturbances that reduce the accuracy of the ejection operation.

[0007] Therefore, existing catapult vehicles have high requirements for strength and rigidity, are bulky, have weak recoil buffering capacity, cannot be adapted to large-caliber ammunition types, and have large disturbances in the storage and transport boxes during ejection. These are technical problems that urgently need to be solved. Summary of the Invention

[0008] This invention provides an ejection vehicle, a hydraulic system, and a recoil transmission control method, aiming to solve the technical problems of existing ejection vehicles, such as high strength and rigidity requirements, overall bulkiness, weak recoil buffering capacity, inability to adapt to large-caliber ammunition types, and large disturbances in the ammunition storage box during ejection.

[0009] One aspect of the present invention relates to an ejection vehicle, comprising a slider, a storage and transport box, a sliding frame, a sliding cylinder, an erecting frame, a pitch cylinder, a turntable, a base, and a sliding guide rail. The storage and transport box is mounted on the sliding frame. The sliding guide rail is bolted to the upper surface of the erecting frame, and the slider is bolted to the lower surface of the sliding frame. The sliding guide rail and the slider cooperate to form a sliding pair. The piston cylinder end of the sliding cylinder is hinged to the erecting frame, and the piston rod end of the sliding cylinder is connected to the sliding frame. The extension and retraction of the sliding cylinder drives the sliding frame to slide relative to the erecting frame. The two ends of the pitch cylinder are respectively connected to the turntable and the erecting frame. The turntable is mounted on the base, and the erecting frame is hinged to the turntable.

[0010] Furthermore, the piston cylinder end of the pitch cylinder is connected to the turntable via a pin, the piston rod end of the pitch cylinder is connected to the erecting frame via a pin, and the rotation hinge point of the erecting frame is connected to the rear hinge point of the turntable via a pin. When the pitch cylinder extends or retracts, it drives the erecting frame, the ammunition storage box, the sliding frame, and the sliding cylinder to pitch together around the rear hinge point of the turntable.

[0011] Furthermore, the piston cylinder end hinge of the sliding cylinder is connected to the erecting frame via a first pin, and the piston rod end of the sliding cylinder is connected to the waist-shaped groove of the sliding frame via a second pin. The ammunition storage box is provided with a buffer seat at the end away from the sliding frame. When the connecting pin of the sliding cylinder moves to the middle position of the waist-shaped groove, due to the existence of the waist-shaped groove, when the ammunition storage box, the sliding frame and the erecting frame are in a mechanically decoupled state, the recoil force is transmitted to the ground through the buffer seat.

[0012] Another aspect of the present invention relates to a recoil transmission control hydraulic system applied in the aforementioned catapult vehicle. The recoil transmission control hydraulic system includes a one-way throttle valve, a first solenoid valve, a sliding balance valve, a second solenoid valve, a rotary brake cylinder, a rotary balance valve, a stamping one-way valve, a flow equalization valve, a pitch balance valve, an electro-proportional multi-way valve, a first accumulator, a second accumulator, and a third solenoid valve. The sliding cylinder is connected to the sliding balance valve, the pitch cylinder is connected to the pitch balance valve, and the rotary brake cylinder is connected to the rotary balance valve. The rotary brake cylinder is connected to the turntable. The first accumulator is divided into two paths: one path is connected to the sliding balance valve, the rotary balance valve, and the pitch balance valve respectively through the electro-proportional multi-way valve, and the other path is connected to the rotary brake cylinder through the second solenoid valve. The second accumulator is connected to the sliding cylinder after being connected in series with the third solenoid valve, the one-way throttle valve, and the first solenoid valve.

[0013] Furthermore, the oil inlet of the rotary balance valve is connected to the A2 and B2 ports of the electro-proportional multi-way valve, respectively, and the oil outlet of the rotary balance valve is connected to the sliding cylinder. When the catapult needs to adjust its orientation, the second solenoid valve is energized, the rotary brake cylinder is opened under the action of the pressure oil, the solenoid coil Y3 / solenoid coil Y4 of the electro-proportional multi-way valve is energized, and the pressure oil drives the turntable to perform left / right rotary motion after passing through the A2 and B2 ports of the electro-proportional multi-way valve and the rotary balance valve.

[0014] Furthermore, the pitch cylinder includes a first pitch cylinder and a second pitch cylinder. The oil inlet of the pitch balance valve is connected to ports A4 and A5 of the electro-proportional multi-way valve, respectively. The oil outlet of the pitch balance valve is connected to the first pitch cylinder and the second pitch cylinder, respectively. When the catapult needs to increase the firing angle, the electromagnetic coils Y7 and Y9 of the electro-proportional multi-way valve are energized simultaneously. The pressurized oil, after passing through ports A4 and A5 of the electro-proportional multi-way valve and the pitch balance valve, drives the left and right pitch cylinders of the first and second pitch cylinders to extend their piston rods synchronously, thereby driving the erector frame to extend its pitch. When the firing angle needs to decrease, the electromagnetic coils Y8 and Y10 of the electro-proportional multi-way valve are energized simultaneously. The pressurized oil, after passing through ports A4 and A5 of the electro-proportional multi-way valve 510 and the pitch balance valve, drives the left and right pitch cylinders of the first and second pitch cylinders to extend their piston rods synchronously, thereby driving the erector frame to extend its pitch.

[0015] Furthermore, the oil inlet of the sliding balance valve is connected to the A1 port and B1 port of the electro-proportional multi-way valve, respectively, and the oil outlet of the sliding balance valve is connected to the rod chamber and rodless chamber of the sliding cylinder, respectively. When the catapult needs to perform sliding extension and retraction, the electromagnetic coil Y1 / electromagnetic coil Y2 of the electro-proportional multi-way valve is energized. The pressurized oil drives the sliding cylinder to perform extension / retraction after passing through the A1 port and B1 port of the electro-proportional multi-way valve and the sliding balance valve, thereby driving the sliding frame to perform sliding extension / retraction.

[0016] Furthermore, the stamping check valve is connected to ports A3 and B3 of the electro-proportional multi-way valve. When the catapult needs to press the hydraulic oil in the sliding cylinder, the solenoid coils Y5 and Y6 of the electro-proportional multi-way valve are energized. The pressurized oil compresses the hydraulic oil in the rodless chamber of the sliding cylinder after passing through ports A3 and B3 of the electro-proportional multi-way valve and the stamping check valve. This reduces the hydraulic compression of the sliding cylinder during catapult launch and reliably transmits the impact load generated by the recoil to the erector frame.

[0017] This invention also relates to a recoil transmission control method, applied to the aforementioned recoil transmission control hydraulic system, the recoil transmission control method comprising the following steps:

[0018] Start-up process;

[0019] When the electromagnetic coil Y1 of the proportional multi-way valve is energized, it slides to the designated position.

[0020] When the electromagnetic coils Y8 and Y9 of the proportional multi-way valve are energized, the pitch cylinder extends to the specified firing angle.

[0021] When the electromagnetic coil Y3 or Y4 of the proportional multi-way valve is energized, and Y13 is also energized, the rotary brake cylinder is opened, and the rotary motor rotates to the specified azimuth angle.

[0022] If the compatible ammunition type is identified as caliber A, then the mechanism is unlocked and the hydraulic floating unlock is performed to transmit recoil.

[0023] The sliding cylinder slides to the middle section of the waist-shaped groove, and the tail of the storage and transport box contacts the buffer seat. The electromagnetic coils Y11 and Y12 of the electro-proportional multi-way valve are energized, and the rod chamber and rodless chamber of the sliding cylinder are connected. The recoil force is transmitted through the combined transmission of the hydraulic compression buffer and the buffer seat.

[0024] Initiate the catapult launch operation;

[0025] Homework completed.

[0026] Furthermore, after the steps of energizing the electromagnetic coil Y3 or Y4 of the electro-proportional multi-way valve, and energizing Y13, opening the rotary brake cylinder, and rotating the rotary motor to the specified azimuth angle, the following steps are also included:

[0027] If the compatible ammunition type is identified as caliber b, then hydraulic floating unlocking and recoil transmission will be performed.

[0028] When the electromagnetic coils Y11 and Y12 of the electro-proportional multi-way valve are energized, the rod-side and rodless-side chambers of the sliding cylinder are connected, and the recoil force is transmitted to the erector frame after being buffered by hydraulic compression and buffered by the rear seat.

[0029] After the steps of energizing either electromagnetic coil Y3 or Y4 of the electro-proportional multi-way valve, and energizing electromagnetic coil Y13, opening the rotary brake cylinder, and rotating the rotary motor to the specified azimuth angle, the following steps are also included:

[0030] If the compatible ammunition type is identified as caliber C, then the recoil force of the sliding cylinder is transmitted.

[0031] Based on the stiffness coefficient k and damping coefficient C of the elastic buffer seat, the charging pressure P1 of the hydraulic cylinder is adjusted, and the multi-way valve solenoid coils Y5 and Y6 are energized.

[0032] The beneficial effects achieved by this invention are as follows:

[0033] This invention discloses an ejection vehicle, a hydraulic system, and a recoil transmission control method. The ejection vehicle comprises a slider, a storage and transport box, a sliding frame, a sliding cylinder, an erecting frame, a pitch cylinder, a turntable, a base, and a sliding guide rail. The storage and transport box is mounted on the sliding frame. The sliding guide rail is bolted to the upper surface of the erecting frame, and the slider is bolted to the lower surface of the sliding frame. The sliding guide rail and the slider cooperate to form a sliding pair. The piston cylinder of the sliding cylinder is hinged to the erecting frame, and the piston rod of the sliding cylinder is connected to the sliding frame. The extension and retraction of the sliding cylinder drives the sliding frame to slide relative to the erecting frame. The two ends of the pitch cylinder are connected to the turntable and the erecting frame, respectively. The turntable is mounted on the base, and the erecting frame is hinged to the turntable. The beneficial effects of this invention—the ejection vehicle, the hydraulic system, and the recoil transmission control method—are as follows:

[0034] 1. High degree of vehicle lightweighting. At the moment of ejection, the appropriate recoil impact transmission path is selected according to the type of projectile, eliminating or weakening the impact of recoil, optimizing the safety design margin of the vehicle, and significantly reducing its weight.

[0035] 2. Strong recoil buffering capacity. By employing methods such as mechanical unlocking recoil transmission, hydraulic buffering recoil transmission, and hydraulic cylinder stamping recoil transmission, recoil forces of different load sizes are reliably transmitted backward, avoiding irreversible damage caused by traditional rigid hard connection structures.

[0036] 3. Adaptable to multiple caliber ammunition types. The system selects the optimal recoil transmission path based on the recoil generated by different caliber ammunition types, meeting the ejection requirements of multiple ammunition types.

[0037] 4. Minimal disturbance in the ammunition storage box during ejection. During continuous ejection operations, different force transmission paths are used to weaken the impact load, reducing the periodic attenuation disturbance of the ammunition storage box caused by recoil impact and improving the accuracy of ejection operations. Attached Figure Description

[0038] Figure 1 A schematic diagram of the recoil transmission state of an existing catapult vehicle;

[0039] Figure 2 This is a schematic diagram of the catapult vehicle of the present invention;

[0040] Figure 3 This is a schematic diagram of the sliding cylinder connection of the catapult vehicle of the present invention;

[0041] Figure 4 This is a schematic diagram of the ejection vehicle of the present invention being ejected into position;

[0042] Figure 5 This is a schematic diagram of the hydraulic system for controlling the recoil transmission of the catapult vehicle of the present invention;

[0043] Figure 6This is a schematic diagram of the recoil transmission control process of the catapult vehicle of the present invention.

[0044] Explanation of icon numbers:

[0045] 201. Slider; 202. Ammunition storage box; 203. Sliding frame; 204. Sliding cylinder; 205. Erection frame; 206. Pitch cylinder; 207. Turntable; 208. Base; 209. Sliding guide rail; 301. First pin; 302. Second pin; 401. Waist-shaped groove; 402. Buffer seat; 501. One-way throttle valve; 502. First solenoid valve; 503. Sliding balance valve; 504. Second solenoid valve; 505. Rotation brake cylinder; 506. Rotation balance valve; 507. Stamping one-way valve; 508. Flow equalization valve; 509. Pitch balance valve; 510. Electro-proportional multi-way valve; 511. First accumulator; 512. Second accumulator; 513. Third solenoid valve; 2061. First pitch cylinder; 2062. Second pitch cylinder. Detailed Implementation

[0046] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0047] like Figure 2 As shown, this embodiment proposes an ejection vehicle, including a slider 201, a storage and transport box 202, a sliding frame 203, a sliding cylinder 204, an erecting frame 205, a pitch cylinder 206, a turntable 207, a base 208, and a sliding guide rail 209. The storage and transport box 202 is mounted on the sliding frame 203. The sliding guide rail 209 is bolted to the upper surface of the erecting frame 205. The slider 201 is bolted to the lower surface of the sliding frame 203. The sliding guide rail 209 and the slider 201... 01. A sliding pair is formed through mutual cooperation; the piston cylinder end hinge of the sliding cylinder 204 is connected to the erecting frame 205, and the piston rod end of the sliding cylinder 204 is connected to the sliding frame 203. The sliding frame 203 is driven to slide relative to the erecting frame 205 by the extension and retraction of the sliding cylinder 204; the two ends of the pitch cylinder 206 are respectively connected to the turntable 207 and the erecting frame 205; the turntable 207 is installed on the base 208, and the erecting frame 205 is hinged to the turntable 207.

[0048] Further, please see Figures 2 to 6In the catapult vehicle provided in this embodiment, the piston cylinder end of the pitch cylinder 206 is connected to the turntable 207 via a pin, the piston rod end of the pitch cylinder 206 is connected to the erector frame 205 via a pin, and the rotation hinge point of the erector frame 205 is connected to the rear hinge point of the turntable 207 via a pin. When the pitch cylinder 206 extends or retracts, it drives the erector frame 205, the ammunition storage box 202, the sliding frame 203, and the sliding cylinder 204 to pitch together around the rear hinge point of the turntable 207. The piston cylinder end hinge of the sliding cylinder 204 is connected to the erecting frame 205 via the first pin 301. The piston rod end of the sliding cylinder 204 is connected to the waist-shaped groove 401 of the sliding frame 203 via the second pin 302. The end of the ammunition storage box 202 away from the sliding frame 203 is provided with a buffer seat 402. When the connecting pin of the sliding cylinder 204 moves to the middle position of the waist-shaped groove 401, due to the existence of the waist-shaped groove 401, when the ammunition storage box 202, the sliding frame 203 and the erecting frame 205 are in a mechanically decoupled state, the recoil force is transmitted to the ground through the buffer seat 402, which greatly reduces the impact of large impact loads on the catapult device.

[0049] Another aspect of the present invention relates to a recoil transmission control hydraulic system applied in the aforementioned catapult vehicle. The recoil transmission control hydraulic system includes a one-way throttle valve 501, a first solenoid valve 502, a sliding balance valve 503, a second solenoid valve 504, a rotary brake cylinder 505, a rotary balance valve 506, a stamping one-way valve 507, a flow equalization valve 508, a pitch balance valve 509, an electro-proportional multi-way valve 510, a first accumulator 511, a second accumulator 512, and a third solenoid valve 513. A sliding cylinder 204 is connected to the sliding balance valve 503, and a pitch cylinder 20... 6 is connected to the pitch balance valve 509, and the rotary brake cylinder 505 is connected to the rotary balance valve 506; the rotary brake cylinder 505 is connected to the turntable 207. The first accumulator 511 is divided into two paths: one path is connected to the sliding balance valve 503, the rotary balance valve 506, and the pitch balance valve 509 respectively through the electro-proportional multi-way valve 510; the other path is connected to the rotary brake cylinder 505 through the second solenoid valve 504. The second accumulator 512 is connected to the sliding cylinder 204 after being connected in series with the third solenoid valve 513, the one-way throttle valve 501, and the first solenoid valve 502. In this embodiment, the pressurized oil enters the P1 port of the electro-proportional multi-way valve 510 and returns from the T1 port of the electro-proportional multi-way valve 510.

[0050] Further, please see Figures 2 to 6In the recoil transmission control hydraulic system provided in this embodiment, the oil inlet of the rotary balance valve 506 is connected to the A2 port and B2 port of the electro-proportional multi-way valve 510, respectively, and the oil outlet of the rotary balance valve 506 is connected to the sliding cylinder 204. When the catapult needs to adjust its orientation, the second solenoid valve 504 is energized, the rotary brake cylinder 505 is opened under the action of the pressure oil, the solenoid coil Y3 / solenoid coil Y4 of the electro-proportional multi-way valve 510 is energized, and the pressure oil drives the turntable 207 to perform left / right rotation after passing through the A2 port and B2 port of the electro-proportional multi-way valve 510 and the rotary balance valve 506.

[0051] Preferably, see Figures 2 to 6 The recoil transmission control hydraulic system provided in this embodiment includes a pitch cylinder 206 comprising a first pitch cylinder 2061 and a second pitch cylinder 2062. The inlet of the pitch balance valve 509 is connected to ports A4 and A5 of the electro-proportional multi-way valve 510, and the outlet of the pitch balance valve 509 is connected to the first pitch cylinder 2061 and the second pitch cylinder 2062. When the catapult needs to adjust the firing angle, the electromagnetic coils Y7 and Y9 of the electro-proportional multi-way valve 510 are simultaneously energized. Pressure oil flows through ports A4 and A5 of the electro-proportional multi-way valve 510 and the pitch balance valve... After valve 509, the first pitch cylinder 2061 and the second pitch cylinder 2062 are driven to extend their piston rods synchronously, which in turn drives the erector 205 to extend its pitch. When the firing angle needs to be reduced, the solenoid coils Y8 and Y10 of the electro-proportional multi-way valve 510 are energized simultaneously. The pressurized oil passes through ports A4 and A5 of the electro-proportional multi-way valve 510 and the pitch balance valve 509 to drive the first pitch cylinder 2061 and the second pitch cylinder 2062 to extend their piston rods synchronously, which in turn drives the erector 205 to extend its pitch.

[0052] Preferably, please see Figures 2 to 6The recoil transmission control hydraulic system provided in this embodiment connects the stamping check valve 507 to ports A3 and B3 of the electro-proportional multi-way valve 510. When the catapult needs to pressurize the hydraulic oil in the sliding cylinder 204, the solenoid coils Y5 and Y6 of the electro-proportional multi-way valve 510 are energized. The pressurized oil compresses the hydraulic oil in the rodless chamber of the sliding cylinder 204 after passing through ports A3 and B3 of the electro-proportional multi-way valve 510 and the stamping check valve 507. This reduces the hydraulic compression of the sliding cylinder 204 during catapult launch and reliably transmits the impact load generated by the recoil to the erector 205. In this embodiment, the sliding balance valve 503, the slewing balance valve 506, and the pitch balance valve 509 serve to maintain the load and reduce start-stop impact. When the ammunition storage box 202 and the buffer recoil 402 need to be reliably engaged to transfer the recoil force to the ground, the first solenoid valve 502 and the third solenoid valve 513 are energized, the two chambers of the sliding cylinder 204 are connected in series, the sliding frame 203 is in a hydraulically floating unlocked state, the hydraulic oil in the rodless chamber flows to the rod chamber, and at the same time, the control pressure oil is replenished to the rodless chamber of the sliding cylinder 204 through the MX port of the electro-proportional multi-way valve 510, the third solenoid valve 513, the one-way throttle valve 501, and the first solenoid valve 502. Among them, the first accumulator 511 and the second accumulator 512 have the functions of energy storage and pressure stabilization, elimination of pulsating impact, and improvement of the oil replenishment response frequency.

[0053] This invention also relates to a recoil transmission control method, applied to the aforementioned recoil transmission control hydraulic system, the recoil transmission control method comprising the following steps:

[0054] Step S100: Start the startup process.

[0055] Step S200: The electromagnetic coil Y1 of the electro-proportional multi-way valve is energized and slides to the designated position;

[0056] In step S300, the electromagnetic coils Y8 and Y9 of the electro-proportional multi-way valve are energized, and the pitch cylinder extends to the specified firing angle.

[0057] In step S400, the electromagnetic coil Y3 or Y4 of the electro-proportional multi-way valve is energized, and the electromagnetic coil Y13 is energized, the rotary brake cylinder is opened, and the rotary motor rotates to the specified azimuth angle.

[0058] Step S500: If the compatible ammunition type is identified as caliber a, then the mechanism is unlocked and the hydraulic floating unlock is performed to transmit recoil force.

[0059] In this embodiment, the projectile caliber is a > b > c, and the recoil force at the moment of ejection is Fa > Fb > Fc.

[0060] In step S600, the sliding cylinder slides to the middle section of the waist-shaped groove, and the tail of the storage and transport box contacts the buffer seat. The electromagnetic coils Y11 and Y12 of the electro-proportional multi-way valve are energized, and the rod-side and rodless-side chambers of the sliding cylinder are connected. The recoil force is transmitted through the combined transmission of the hydraulic compression buffer and the buffer seat.

[0061] Step S700: Start the catapult launch operation.

[0062] Step S800: The task is completed.

[0063] Furthermore, the recoil transmission control method provided in this embodiment further includes the following after step S400:

[0064] Step S410: If the compatible ammunition type is identified as caliber b, then hydraulic floating unlocking and recoil transmission are performed.

[0065] In step S420, the electromagnetic coils Y11 and Y12 of the electro-proportional multi-way valve are energized, and the rod-side and rodless sides of the sliding cylinder are connected. The recoil force is then transmitted to the erector frame after being buffered by the hydraulic compression and the buffer seat.

[0066] Preferably, the recoil transmission control method provided in this embodiment further includes the following after step S400:

[0067] Step S430: If the compatible ammunition type is identified as caliber c, then the recoil force of the sliding cylinder is transmitted.

[0068] Step S440: Based on the stiffness coefficient k and damping coefficient C of the elastic buffer seat, adjust the charging pressure P1 of the hydraulic cylinder, and energize the electromagnetic coils Y5 and Y6 of the electro-proportional multi-way valve.

[0069] The catapult vehicle, hydraulic system, and recoil transmission control method provided in this embodiment have the following beneficial effects compared with the prior art:

[0070] 1. High degree of vehicle lightweighting. At the moment of ejection, the appropriate recoil impact transmission path is selected according to the type of projectile, eliminating or weakening the impact of recoil, optimizing the safety design margin of the vehicle, and significantly reducing its weight.

[0071] 2. Strong recoil buffering capacity. By employing methods such as mechanical unlocking recoil transmission, hydraulic buffering recoil transmission, and hydraulic cylinder stamping recoil transmission, recoil forces of different load sizes are reliably transmitted backward, avoiding irreversible damage caused by traditional rigid hard connection structures.

[0072] 3. Adaptable to multiple caliber ammunition types. The system selects the optimal recoil transmission path based on the recoil generated by different caliber ammunition types, meeting the ejection requirements of multiple ammunition types.

[0073] 4. Minimal disturbance in the ammunition storage box during ejection. During continuous ejection operations, different force transmission paths are used to weaken the impact load, reducing the periodic attenuation disturbance of the ammunition storage box caused by recoil impact and improving the accuracy of ejection operations.

[0074] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention. Clearly, those skilled in the art can make various alterations and modifications to the invention without departing from its spirit and scope. Thus, if these modifications and modifications of the invention fall within the scope of the claims and their equivalents, the invention is also intended to include these modifications and modifications.

Claims

1. A catapult vehicle, characterized in that, The system includes a slider (201), a storage and transport box (202), a sliding frame (203), a sliding cylinder (204), an erecting frame (205), a pitch cylinder (206), a turntable (207), a base (208), a sliding guide rail (209), and a recoil transmission control hydraulic system. The storage and transport box (202) is mounted on the sliding frame (203). The sliding guide rail (209) is connected to the upper surface of the erecting frame (205), and the slider (201) is connected to the lower surface of the sliding frame (203). The sliding guide rail (209) and the slider (201) cooperate to form a sliding pair. The piston cylinder end of the sliding cylinder (204) The hinge is connected to the erecting frame (205) via a first pin (301). The piston rod end of the sliding cylinder (204) is connected to the waist-shaped groove (401) of the sliding frame (203) via a second pin (302). The ammunition storage box (202) is provided with a buffer seat (402) at one end away from the sliding frame (203). When the connecting pin of the sliding cylinder (204) moves to the middle position of the waist-shaped groove (401), due to the existence of the waist-shaped groove (401), when the ammunition storage box (202), the sliding frame (203) and the erecting frame (205) are in a mechanically decoupled state, the buffer seat (402) provides a buffer. The recoil force is transmitted to the ground; the piston cylinder end hinge of the sliding cylinder (204) is connected to the erecting frame (205), and the piston rod end of the sliding cylinder (204) is connected to the sliding frame (203). The sliding frame (203) is driven to slide relative to the erecting frame (205) by the extension and retraction of the sliding cylinder (204); the two ends of the pitch cylinder (206) are respectively connected to the turntable (207) and the erecting frame (205); the turntable (207) is mounted on the base (208), and the erecting frame (205) is hinged to the turntable (207); the recoil force transmission control hydraulic system includes a single The system includes a throttle valve (501), a first solenoid valve (502), a sliding balance valve (503), a second solenoid valve (504), a rotary brake cylinder (505), a rotary balance valve (506), a stamping check valve (507), a flow equalization valve (508), a pitch balance valve (509), an electro-proportional multi-way valve (510), a first accumulator (511), a second accumulator (512), and a third solenoid valve (513). The sliding cylinder (204) is connected to the sliding balance valve (503), the pitch cylinder (206) is connected to the pitch balance valve (509), and the rotary brake cylinder (505) is connected to the rotary balance valve (506).The rotary brake cylinder (505) is connected to the turntable (207). The first accumulator (511) is divided into two paths. One path is connected to the sliding balance valve (503), the rotary balance valve (506), and the pitch balance valve (509) respectively through the electro-proportional multi-way valve (510). The other path is connected to the rotary brake cylinder (505) through the second solenoid valve (504). The flow equalization valve (508) is connected to the pitch cylinder (206). The second accumulator (512) is connected to the sliding cylinder (204) via the third solenoid valve (513), the one-way throttle valve (501), and the first solenoid valve (502) connected in series. The oil inlet of the sliding balance valve (503) is connected to the A1 and B1 ports of the electro-proportional multi-way valve (510), and the oil outlet of the sliding balance valve (503) is connected to the rod chamber and the rodless chamber of the sliding cylinder (204). When the catapult needs to slide... During the telescoping action, the electromagnetic coils Y1 and Y2 of the electro-proportional multi-way valve (510) are energized. Pressure oil flows through ports A1 and B1 of the electro-proportional multi-way valve (510) and the sliding balance valve (503) to drive the sliding cylinder (204) to extend / retract, thereby driving the sliding frame (203) to slide / extend / retract. The stamping check valve (507) is connected to ports A3 and B3 of the electro-proportional multi-way valve (510). When the catapult needs to... When the hydraulic oil of the sliding cylinder (204) is pressurized, the electromagnetic coils Y5 and Y6 of the electro-proportional multi-way valve (510) are energized. The pressurized oil compresses the hydraulic oil in the rodless chamber of the sliding cylinder (204) after passing through the A3 and B3 ports of the electro-proportional multi-way valve (510) and the pressurization check valve (507). This reduces the hydraulic compression of the sliding cylinder (204) during ejection and reliably transmits the impact load generated by the recoil to the erector frame (205).

2. The catapult vehicle as described in claim 1, characterized in that, The piston cylinder end of the pitch cylinder (206) is connected to the turntable (207) via a pin, and the piston rod end of the pitch cylinder (206) is connected to the erecting frame (205) via a pin. The rotation hinge point of the erecting frame (205) is connected to the rear hinge point of the turntable (207) via a pin. When the pitch cylinder (206) extends or retracts, it drives the erecting frame (205), the ammunition storage box (202), the sliding frame (203), and the sliding cylinder (204) to pitch together around the rear hinge point of the turntable (207).

3. The recoil transmission control hydraulic system as described in claim 1, characterized in that, The oil inlet of the rotary balance valve (506) is connected to the A2 port and B2 port of the electro-proportional multi-way valve (510) respectively, and the oil outlet of the rotary balance valve (506) is connected to the rotary brake cylinder (505). When the catapult needs to adjust its orientation, the second solenoid valve (504) is energized, the rotary brake cylinder (505) is opened under the action of the pressure oil, the solenoid coil Y3 / solenoid coil Y4 of the electro-proportional multi-way valve (510) is energized, and the pressure oil drives the turntable (207) to perform left / right rotation after passing through the A2 port and B2 port of the electro-proportional multi-way valve (510) and the rotary balance valve (506).

4. The recoil transmission control hydraulic system as described in claim 3, characterized in that, The pitch cylinder (206) includes a first pitch cylinder (2061) and a second pitch cylinder (2062). The oil inlet of the pitch balance valve (509) is connected to the A4 and A5 ports of the electro-proportional multi-way valve (510), respectively. The oil outlet of the pitch balance valve (509) is connected to the first pitch cylinder (2061) and the second pitch cylinder (2062), respectively. When the catapult needs to adjust the firing angle, the electromagnetic coils Y7 and Y9 of the electro-proportional multi-way valve (510) are simultaneously energized. Pressure oil flows through the A4 and A5 ports of the electro-proportional multi-way valve (510) and the pitch balance valve. After the valve (509) drives the first pitch cylinder (2061) and the second pitch cylinder (2062) to perform synchronous piston rod extension, thereby driving the erector (205) to perform pitch extension; when the angle of attack needs to be reduced, the electromagnetic coils Y8 and Y10 of the electro-proportional multi-way valve (510) are energized at the same time, and the pressure oil drives the first pitch cylinder (2061) and the second pitch cylinder (2062) to perform synchronous piston rod extension and retraction through the A4 and A5 ports of the electro-proportional multi-way valve (510) and the pitch balance valve (509), thereby driving the erector (205) to perform pitch extension.

5. A method for controlling recoil transmission, characterized in that, The recoil transmission control method, applied to the hydraulic system for recoil transmission control according to claim 1, includes the following steps: Start-up process; When the electromagnetic coil Y1 of the proportional multi-way valve is energized, it slides to the designated position. When the electromagnetic coils Y8 and Y9 of the proportional multi-way valve are energized, the pitch cylinder extends to the specified firing angle. When the electromagnetic coil Y3 or Y4 of the proportional multi-way valve is energized, and Y13 is also energized, the rotary brake cylinder is opened, and the rotary motor rotates to the specified azimuth angle. If the compatible ammunition type is identified as caliber A, then the mechanism is unlocked and the hydraulic floating unlock is performed to transmit recoil. The sliding cylinder slides to the middle section of the waist-shaped groove, and the tail of the storage and transport box contacts the buffer seat. The electromagnetic coils Y11 and Y12 of the electro-proportional multi-way valve are energized, and the rod chamber and rodless chamber of the sliding cylinder are connected. The recoil force is transmitted through the combined transmission of the hydraulic compression buffer and the buffer seat. Initiate the catapult launch operation; Homework completed.

6. The recoil transmission control method as described in claim 5, characterized in that, After the step of energizing the multi-way valve solenoid coil Y3 or solenoid coil Y4, and energizing Y13, opening the rotary brake cylinder, and rotating the rotary motor to the specified azimuth angle, the following is also included: If the compatible ammunition type is identified as caliber b, then hydraulic floating unlocking and recoil transmission will be performed. When the electromagnetic coils Y11 and Y12 of the electro-proportional multi-way valve are energized, the rod-side and rodless-side chambers of the sliding cylinder are connected, and the recoil force is transmitted to the erector frame after being buffered by hydraulic compression and buffered by the rear seat. After the steps of energizing either electromagnetic coil Y3 or Y4 of the electro-proportional multi-way valve, and energizing electromagnetic coil Y13, opening the rotary brake cylinder, and rotating the rotary motor to the specified azimuth angle, the following steps are also included: If the compatible ammunition type is identified as caliber C, then the recoil force of the sliding cylinder is transmitted. Based on the stiffness coefficient k and damping coefficient C of the elastic buffer seat, the charging pressure P1 of the hydraulic cylinder is adjusted, and the electromagnetic coils Y5 and Y6 of the electro-proportional multi-way valve are energized.

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