A radar box dismounting and mounting trolley

Abstract

The utility model discloses a kind of radar box dismounting trolleys, belong to dismounting trolley field, including upper platform and lower platform, the upper platform is lifted relative to the lower platform by hydraulic lifting mechanism, the hydraulic lifting mechanism includes support rod and hydraulic lifting system;The both ends of the support rod are connected with upper platform and lower platform respectively;One end of the hydraulic lifting system is installed on lower platform, and the other end of the hydraulic lifting system is connected with support rod;It is convenient to use in aircraft maintenance, satisfy task demand.

Description

Technical Field

[0001] This utility model belongs to the field of disassembly and assembly trailers, and in particular a radar box disassembly and assembly trailer. Background Technology

[0002] A disassembly / assembly trailer is a mobile support device specifically designed to assist in the disassembly and assembly of large or heavy equipment and components in the aviation, aerospace, military, and other industrial sectors. Disassembly / assembly trailers provide a stable platform for the safe transport, support, and positioning of various equipment, such as aircraft engines, radar system components, and ship parts, to facilitate maintenance, inspection, replacement, or upgrade operations.

[0003] In the operational and routine maintenance of modern naval carrier-based aviation, efficient and precise technical support is crucial to ensuring the combat effectiveness of carrier-based aircraft. Tasks such as the disassembly and assembly of machine guns, maintenance of radar boxes, and replacement of radomes are vital links in ensuring the good condition of carrier-based aircraft. These maintenance activities require a high degree of specialization and precision. Currently, the related support equipment equipped on ships, including dedicated machine gun work vehicles, radar box disassembly and assembly vehicles, and radome disassembly and assembly vehicles, while each with its specific function, faces problems in practice such as large numbers, excessive space occupation, and low efficiency. This not only affects the utilization of hangar space but also limits the flexibility and efficiency of maintenance operations.

[0004] Therefore, there is an urgent need to innovate existing support equipment and design a comprehensive platform that integrates multiple functions such as machine guns, radar boxes, and radome assembly / disassembly through technological innovation. This would achieve a high degree of functional integration, significantly freeing up valuable hangar space, reducing the number of required equipment, and maintaining or improving the ease of operation and maintenance efficiency of the equipment while reducing the overall weight. Utility Model Content

[0005] The purpose of this utility model is to address the problems faced by radar box disassembly and assembly trailers in actual operation, such as large quantity, excessive space occupation, and low efficiency, and to provide a radar box disassembly and assembly trailer.

[0006] The first aspect of this utility model is achieved through the following technical solution: an airborne device, including an upper platform and a lower platform, wherein the upper platform is raised and lowered relative to the lower platform by a hydraulic lifting mechanism, the hydraulic lifting mechanism including a support rod and a hydraulic lifting system; the two ends of the support rod are respectively connected to the upper platform and the lower platform; one end of the hydraulic lifting system is installed on the lower platform, and the other end of the hydraulic lifting system is connected to the support rod.

[0007] Preferably, the support rod includes an inner support rod and an outer support rod; the inner support rod and the outer support rod are arranged crosswise, and the hydraulic lifting system is connected to the crosswise position of the inner support rod and the outer support rod through a support frame.

[0008] Preferably, the hydraulic lifting system includes a hydraulic cylinder, a balance valve, a speed control valve, a three-position four-way solenoid directional valve, a hydraulic valve, a filter, a relief valve, and a check valve. Three check valves are provided, designated as a first check valve, a second check valve, and a third check valve. The hydraulic cylinder is connected to the three-position four-way solenoid directional valve via a pipeline. The balance valve and the speed control valve are located near the hydraulic cylinder. The three check valves are respectively located on the pipelines between the balance valve, the speed control valve, and the three-position four-way solenoid directional valve and the hydraulic valve. The filter is connected to the hydraulic valve. The relief valve is located on the pipeline between the three-position four-way solenoid directional valve and the hydraulic valve.

[0009] The second aspect of this utility model is achieved through the following technical solution: a radar dome disassembly and assembly vehicle, wherein radar dome disassembly and assembly platforms are installed at both ends of the upper platform, the radar dome disassembly and assembly platforms include radar dome bracket bases, artillery platform supports and lifting mechanisms, the radar dome bracket bases are installed at both ends of the upper platform, and the artillery platform supports are installed between the radar dome bracket bases and the lifting mechanisms.

[0010] Preferably, the lifting mechanism includes a radar dome assembly / disassembly platform support, a radar dome assembly / disassembly platform support frame, a radar dome assembly / disassembly platform angle component, and a lead screw; the radar dome assembly / disassembly platform support is installed on the upper platform, the radar dome assembly / disassembly platform support frame is installed on the radar dome assembly / disassembly platform support, one end of the lead screw is connected to the radar dome assembly / disassembly platform support, and the other end of the lead screw is connected to the radar dome assembly / disassembly platform angle component and drives the radar dome assembly / disassembly platform angle component to move up and down relative to the radar dome assembly / disassembly platform support.

[0011] The third aspect of this utility model is achieved through the following technical solution: a radar box disassembly and assembly trolley, including a radar cover disassembly and assembly trolley and a movable platform, wherein the movable platform is mounted on an upper platform via a guide rail screw.

[0012] Compared with the prior art, this utility model has the following beneficial effects: After the three vehicles of "gun work vehicle, radar box disassembly and assembly vehicle, and radar dome disassembly and assembly vehicle" are combined into one, the functions, size, weight, etc. are reasonably optimized, which achieves the purpose of freeing up hangar space, reducing the number of equipment, reducing the weight of equipment, and facilitating its use in the maintenance of carrier-based aircraft, thus meeting the set mission requirements. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2This is a structural schematic diagram of the lifting mechanism of this utility model.

[0015] Figure 3 This is a schematic diagram of the hydraulic lifting system structure of this utility model.

[0016] Figure 4 This is a top view of the movable platform structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the main structure of the movable tabletop of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Upper platform; 2. Lower platform; 3. Support rod; 4. Hydraulic lifting system; 5. Radome bracket base; 6. Carrier platform support; 7. Lifting mechanism; 8. Movable platform; 9. Wheel; 10. Fixed support seat; 31. Inner support rod; 32. Outer support rod; 41. Hydraulic cylinder; 42. Balance valve; 43. Speed ​​control valve; 44. Three-position four-way solenoid directional valve; 45. First check valve; 46. Hydraulic valve; 47. Filter; 48. Overflow valve; 49. Second check valve; 50. Third check valve; 71. Radome disassembly and assembly platform support; 72. Radome disassembly and assembly platform support frame; 73. Radome disassembly and assembly platform angle component; 74. Lead screw. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0020] Referring to the figure, the first aspect of this utility model discloses an airborne device, including an upper platform 1 and a lower platform 2. The upper platform 1 is raised or lowered relative to the lower platform 2 by a hydraulic lifting mechanism. The hydraulic lifting mechanism includes a support rod 3 and a hydraulic lifting system 4. The two ends of the support rod 3 are respectively connected to the upper platform 1 and the lower platform 2. One end of the hydraulic lifting system 4 is installed on the lower platform 2, and the other end of the hydraulic lifting system 4 is connected to the support rod 3.

[0021] The support rod 3 includes an inner support rod 31 and an outer support rod 32; the inner support rod 31 and the outer support rod 32 are arranged crosswise, and the hydraulic lifting system 4 is connected to the crosswise position of the inner support rod 31 and the outer support rod 32 through a support frame.

[0022] The hydraulic lifting system 4 includes a hydraulic cylinder 41, a balance valve 42, a speed regulating valve 43, a three-position four-way solenoid directional valve 44, a hydraulic valve 46, a filter 47, an overflow valve 48, and a check valve. There are three check valves, namely a first check valve 45, a second check valve 49, and a third check valve 50.

[0023] Specifically, the hydraulic cylinder 41 is connected to a three-position four-way solenoid directional valve 44 via a pipeline. The three-position four-way solenoid directional valve 44 controls the flow direction of the hydraulic oil, thereby controlling the extension and retraction of the cylinder. The balance valve 42 and the speed control valve 43 are located near the hydraulic cylinder 41 to precisely control the movement speed and balance of the hydraulic cylinder 41. Three check valves are provided, which are respectively located on the pipeline between the balance valve 42, the speed control valve 43, and the three-position four-way solenoid directional valve 44 and the hydraulic valve 46. The filter 47 is connected to the hydraulic valve 46. The relief valve 48 is located on the pipeline between the three-position four-way solenoid directional valve 44 and the hydraulic valve 46. In use, the filtered hydraulic oil first flows to the hydraulic valve 46, which is a control valve used to adjust the system pressure or flow rate to ensure that the system operates at appropriate pressure and flow. After the hydraulic oil flows through the hydraulic valve 46, it flows to the three-position four-way solenoid directional valve 44. The three-position four-way solenoid directional valve 44 changes the flow direction of the hydraulic oil according to the received electrical control signal, determining whether the hydraulic cylinder 41 extends or retracts. Under the control of the three-position four-way solenoid directional valve 44, the hydraulic oil flows into the corresponding chamber of the hydraulic cylinder 41, pushing the piston rod to move and achieving the extension / retraction action. The balance valve 42 and speed control valve 43, located near the hydraulic cylinder 41, precisely control the operating speed and balance of the hydraulic cylinder 41. The speed control valve 43 adjusts the flow rate of the hydraulic oil to control the... The piston rod's movement speed is controlled by the balance valve 42, which ensures smooth piston rod movement under varying loads. The three check valves ensure that hydraulic oil flows in only one direction, preventing backflow and protecting the system's normal operation. The relief valve 48, located on the pipeline between the three-position four-way solenoid directional valve 44 and the hydraulic valve 46, protects the system from excessive pressure. When the system pressure exceeds the safety threshold set by the relief valve 48, the relief valve 48 opens, allowing some hydraulic oil to flow back to the tank, thereby reducing system pressure and preventing equipment damage due to overpressure.

[0024] The second aspect of this utility model discloses a radar dome disassembly and assembly trolley. Based on the first embodiment, the upper platform 1 of the new autocannon disassembly and assembly trolley is equipped with radar dome disassembly and assembly platforms at both ends. The radar dome disassembly and assembly platforms include a radar dome bracket base 5, an autocannon platform support 6, and a lifting mechanism 7. The lifting mechanism 7 has a stroke of 130mm and is used to achieve fine-tuning and height compensation in the height direction during radar dome disassembly and assembly. Lateral fine-tuning is achieved by adjusting the lead screw on the radar dome disassembly and assembly assembly using a ratchet wrench. In use, the radar dome disassembly and assembly platforms are fixed to the upper platform 1 of the autocannon disassembly and assembly trolley by hexagonal bolts and connected by safety pins. Specifically, the radar dome bracket base 5 is installed on the upper platform. At both ends of 1, the gun platform support 6 is installed between the radome bracket base 5 and the lifting mechanism 7; the lifting mechanism 7 includes a radome disassembly and assembly platform support 71, a radome disassembly and assembly platform support frame 72, a radome disassembly and assembly platform angle component 73, and a lead screw 74; the radome disassembly and assembly platform support 71 is installed on the upper platform 1, the radome disassembly and assembly platform support frame 72 is installed on the radome disassembly and assembly platform support 71, one end of the lead screw 74 is connected to the radome disassembly and assembly platform support 71, and the other end of the lead screw 74 is connected to the radome disassembly and assembly platform angle component 73 and drives the radome disassembly and assembly platform angle component 73 to move up and down relative to the radome disassembly and assembly platform support 71.

[0025] The third aspect of this utility model discloses a radar box assembly / disassembly trolley, including a movable platform 8. The movable platform 8 is mounted on an upper platform 1 via guide rails and screws, and a fixed platform is bolted to the movable platform 8. In use, the platform cover is removed, and the radar box assembly / disassembly trolley is fixed to the movable platform via 16 bolt connection points (positions marked as indicated). Due to the addition of guide rails and screws to the new machine gun work vehicle, the platform is made laterally movable. During operation, the platform cover is removed, and the movable platform 8 can then be used in conjunction with the radar box assembly / disassembly components via the 16 bolt connection points (positions marked as indicated), achieving the lateral fine-tuning requirements during radar box assembly / disassembly. When not in use, the cover is closed, positioning pins are inserted, and the platform is flush with the other side.

[0026] In the above embodiment, the vehicle also includes wheels 9, which are mounted on the lower platform 2 for moving the disassembly and assembly trailer; and a fixed support 10, which is mounted on the lower platform 2 for fixing the disassembly and assembly trailer.

[0027] The specific parameters of the three-in-one vehicle, which combines the functions of a machine gun support vehicle, a radar box assembly / disassembly vehicle, and a radome assembly / disassembly vehicle, are shown in Table 1.

[0028] Table 1. Specific parameters of the three-in-one vehicle: "Machine Gun Support Vehicle, Radar Box Installation and Removal Vehicle, and Radar Dome Installation and Removal Vehicle".

[0029]

[0030] 1) Feasibility of structural dimensions

[0031] As shown in Table 1, the new radar dome assembly / disassembly assembly has a working stroke of 1060-2225mm, meeting the height requirements for radar dome assembly / disassembly; the new radar box assembly / disassembly assembly has a working stroke of 1010-3045mm, meeting the maximum lifting height requirements of the original radar box assembly / disassembly vehicle. The lead screw stroke is 1000mm, meeting the front-to-rear height difference requirements during radar box assembly / disassembly.

[0032] 2) Bearing feasibility

[0033] As shown in Table 1, the rated load capacity of the machine gun working vehicle is 350 kg, and the load capacity requirement for assembling and disassembling the radar dome is 100 kg, which is far less than the load capacity of the machine gun working vehicle. The load capacity requirement for assembling and disassembling the radar box is 425 kg, which exceeds the load capacity of the machine gun working vehicle. Therefore, the entire hydraulic system was replaced, and the inner diameter of the hydraulic cylinder was thickened from the original 80 mm to 90 mm, which can achieve a maximum load capacity of 7786 kg.

[0034] 3) Functional feasibility

[0035] Two lifting mechanisms are added to both ends of the platform of the new autocannon work vehicle to enable fine-tuning of the height during the installation and removal of the radome. Fine-tuning in the left and right directions is achieved through the original radome installation and removal components. The new autocannon work vehicle is equipped with a guide rail screw, which transforms the platform into a movable platform that can move left and right, meeting the requirements for fine-tuning in the left and right directions during the installation and removal of the radar box. The screw travel is 1000mm to meet the requirements for the front and rear height difference during the installation and removal of the radar box. When not working with the radome and radar box installation and removal components, the new autocannon work vehicle can be covered with a cover plate and a positioning pin inserted to form a plane with the other side, meeting the requirements for autocannon installation and removal.

[0036] In summary, the integration of the "gun work vehicle, radar box assembly / disassembly vehicle, and radar dome assembly / disassembly vehicle" into one unit achieves reasonable optimization in terms of function, size, and weight. This results in freeing up hangar space, reducing the number of equipment, lightening equipment weight, and facilitating use in carrier-based aircraft maintenance, thus meeting the set mission requirements.

[0037] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A radar box dismounting and towing vehicle, characterized in that, The system includes a radome disassembly and assembly trolley and a movable platform (8). The radome disassembly and assembly trolley includes an airborne device, which includes an upper platform (1) and a lower platform (2). The upper platform (1) is raised and lowered relative to the lower platform (2) by a hydraulic lifting mechanism. The hydraulic lifting mechanism includes a support rod (3) and a hydraulic lifting system (4). The two ends of the support rod (3) are connected to the upper platform (1) and the lower platform (2) respectively. One end of the hydraulic lifting system (4) is installed on the lower platform (2), and the other end of the hydraulic lifting system (4) is connected to the support rod (3). The support rod (3) includes an inner support rod (31) and an outer support rod (32). The inner support rod (31) and the outer support rod (32) are arranged crosswise. The hydraulic lifting system (4) is connected to the crosswise position of the inner support rod (31) and the outer support rod (32) through a support frame. The hydraulic lifting system (4) includes a hydraulic cylinder (4). 1) A balance valve (42), a speed control valve (43), a three-position four-way solenoid directional valve (44), a hydraulic valve (46), a filter (47), a relief valve (48), and a check valve, wherein there are three check valves, namely a first check valve (45), a second check valve (49), and a third check valve (50); the hydraulic cylinder (41) is connected to the three-position four-way solenoid directional valve (44) through a pipeline; the balance valve (42) and the speed control valve (43) are located near the hydraulic cylinder (41); there are three check valves, which are respectively located on the pipeline between the balance valve (42), the speed control valve (43), the three-position four-way solenoid directional valve (44), and the hydraulic valve (46); the filter (47) is connected to the hydraulic valve (46); the relief valve (48) is located on the pipeline between the three-position four-way solenoid directional valve (44) and the hydraulic valve (46); The upper platform (1) is equipped with radar dome mounting and dismounting platforms at both ends. The radar dome mounting and dismounting platforms include radar dome bracket bases (5), artillery platform supports (6), and lifting mechanisms (7). The radar dome bracket bases (5) are installed at both ends of the upper platform (1), and the artillery platform supports (6) are installed between the radar dome bracket bases (5) and the lifting mechanisms (7). The lifting mechanism includes radar dome mounting and dismounting platform supports (71), radar dome mounting and dismounting platform support frames (72), and radar dome mounting and dismounting platform corner pieces (71, 72, 73, 74, 75, 76, 77, 78, 79 ... 73) and lead screw (74); the radar dome assembly / disassembly platform support (71) is installed on the upper platform (1), the radar dome assembly / disassembly platform support frame (72) is installed on the radar dome assembly / disassembly platform support (71), one end of the lead screw (74) is connected to the radar dome assembly / disassembly platform support (71), and the other end of the lead screw (74) is connected to the radar dome assembly / disassembly platform corner piece (73) and drives the radar dome assembly / disassembly platform corner piece (73) to move up and down relative to the radar dome assembly / disassembly platform support (71); The movable platform (8) is mounted on the upper platform (1) via a guide rail screw.

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