Test bed for aerial gun ground shooting

Abstract

The utility model provides a test bed for aerial gun ground shooting. The test bed comprises a base plate, a gun bed and a pedestal. The base plate is installed on a test site through foundation bolts. The gun bed is connected with the aircraft gun through an aircraft gun support, the gun bed is fixedly connected to the base plate, a plurality of first T-shaped grooves parallel to the symmetry plane of the aircraft gun are formed in one end of the upper surface of the gun bed, and a shell throwing cavity leading to the interior from the upper surface of the gun bed is formed in the middle of the gun bed. The pedestal is embedded in the other end of the upper surface of the gun bed, a plurality of second T-shaped grooves perpendicular to the first T-shaped grooves are formed in the pedestal, and the first T-shaped grooves and the second T-shaped grooves jointly connect the aircraft gun to the gun bed. The aircraft gun support can be compatible with existing aircraft guns of various models, special transition steel plates do not need to be manufactured when the aircraft gun support is installed, the front, back, left and right installation positions of the support can be slidably adjusted in the longitudinal grooves and the transverse grooves of the test table top through fixing bolts of the support, the impact point requirement is met, and installation is convenient and fast.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft gun firing test technology, specifically relating to a test stand for aircraft gun ground firing. Background Technology

[0002] Fire tests of aircraft cannons are crucial for assessing their reliability. They measure parameters such as recoil during firing. Ground firing tests are conducted by connecting various cannon mounts, including those for delivery cannons, precision cannons, and recoil-based cannons, to a test frame. Currently, different cannon models utilize test frames manufactured using traditional welding methods. These frames have limited recoil resistance and are not interchangeable, allowing only one type of cannon to be tested at a single location. Furthermore, transition steel plates are required for connection to the test frame, making installation complex and replacement time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of this invention is to solve the problems of existing technologies where the test racks used for cannon firing tests cannot be used for all types of cannons and require matching transition steel plates. Instead, it provides a test rack for ground firing of cannons. This test rack can meet the needs of firing tests of different types of cannons, such as handover test racks, accuracy test racks, and recoil test racks, on the same test rack at the same firing site, without the need to manufacture special transition steel plates.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] A test stand for ground firing of an aircraft gun includes a base plate, a gun bed, and a base.

[0006] The base plate is used to be installed to the ground firing test site of the aircraft gun by anchor bolts to support the gun bed and the pad;

[0007] The gun bed is used to connect the aircraft gun via the aircraft gun bracket. The gun bed is fixed to the base plate, and a plurality of first T-slots parallel to the plane of symmetry of the aircraft gun are arranged at one end of the upper surface. The gun bed is provided with an ejection chamber that leads from the upper surface to the interior.

[0008] The pad is embedded at the other end of the upper surface of the gun bed. The pad has a plurality of second T-slots perpendicular to the first T-slot. The first T-slot and the second T-slot together connect the aircraft gun to the gun bed.

[0009] Furthermore, the test bench also includes a base made of cement mortar, and the base plate is fixed to the base by anchor bolts.

[0010] Furthermore, the base plate includes a first plate, a second plate, and a third plate arranged sequentially along the axial direction of the gun bed. The first plate is closer to the pad. The first plate, the second plate, and the third plate are all provided with stepped holes through which the anchor bolts pass and which accommodate nuts that mate with the anchor bolts.

[0011] Furthermore, multiple T-slots perpendicular to each other are arranged on the first plate and the third plate, with the T-slots on each plate extending in parallel, and the T-slots on the first plate being perpendicular to the first T-slot.

[0012] Furthermore, the first plate, the second plate, and the third plate are provided with U-shaped grooves with downward openings that are perpendicular to the first T-shaped groove on their surfaces facing away from the cannon.

[0013] Furthermore, the two ends of the ejection chamber are respectively closed by two baffles connected to the gun bed, and each baffle is installed perpendicular to the axial direction of the gun bed.

[0014] Furthermore, one of the two baffles is located at the end face of the blasting bed and is equipped with a handle.

[0015] Furthermore, the two baffles are connected by a tie rod passing through the two baffles and the blasting bed.

[0016] Furthermore, the two end faces of the gun bed are respectively provided with U-shaped notches with outward openings, which are used to connect the gun bed to the base plate.

[0017] Furthermore, a through groove parallel to the U-shaped notch is provided in the middle of the gun bed to connect the gun bed to the base plate.

[0018] The advantages of this utility model are:

[0019] This utility model discloses a test bench for ground firing of aircraft cannons. The cannon bed is installed at the test site via a base plate. The aircraft cannon with a support can be installed on the cannon bed via T-slots on the base and the support, which is compatible with the cannon supports of various existing aircraft cannon models. The base plate is fixed with anchor bolts. The base is equipped with a support, and the T-slots on the support are arranged horizontally and vertically with the T-slots on the cannon bed, so that the strength meets the maximum recoil requirements during aircraft cannon firing. The ejection window in the middle of the test bench is compatible with the ejection requirements of various aircraft cannons. The aircraft cannon support does not require the fabrication of a special transition steel plate during installation. The front, back, left, and right installation positions of the support can be adjusted by sliding in the longitudinal and transverse slots of the test bench via its own fixing bolts to meet the impact point requirements, making installation convenient and quick. Attached Figure Description

[0020] The above and / or other features and advantages of the present invention will become more readily understood from the following description with reference to the accompanying drawings, which are not drawn to scale and some features are enlarged or reduced to show details of specific parts.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the test rig for ground firing of aircraft cannons according to this utility model;

[0022] Figure 2 This is a partial sectional view of the test rig for ground firing of aircraft cannons according to this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the gun bed in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the pad in this utility model;

[0025] Figure 5 This is a schematic diagram of the base structure in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the first flat plate of the substrate in this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the second flat plate of the substrate in this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the third flat plate of the substrate in this utility model;

[0029] Figure 9 This is a schematic diagram of the structure of the first baffle in this utility model;

[0030] Figure 10 This is a schematic diagram of the structure of the second baffle in this utility model.

[0031] In the figure: 1-substrate, 11-first plate, 111-T-slot of the first plate, 112-U-slot of the first plate, 113-stepped hole of the first plate; 12-second plate, 121-U-slot of the second plate, 122-stepped hole of the second plate, 13-third plate, 131-T-slot of the third plate, 132-U-slot of the third plate, 133-stepped hole of the third plate; 2-gunning bed, 21-first T-slot, 22-U-shaped notch, 23-through groove, 24-groove, 25-side T-slot; 3-base, 31-second T-slot, 32-stepped hole of the base; 4-base, 41-mounting hole; 5-first baffle, 51-through hole; 6-second baffle, 61-U-slot of the second baffle; 7-pull rod; 8-handle; 100-anchor bolt; 101-first bolt; 102-second bolt. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments thereof. It should be noted that the following detailed description of the present invention is for illustrative purposes only and is not intended to limit the scope of the invention.

[0033] The utility model provides a test bench for ground shooting of an aircraft cannon, which is used to connect the aircraft cannon support matching the aircraft cannon and conduct ground shooting tests on the aircraft cannon. This test bench can be installed in the shooting ranges of units such as manufacturing plants, test bases, national shooting ranges, and repair plants, and can be constructed indoors or outdoors. As a comprehensive platform for ground shooting tests of aircraft cannons, it can accommodate all aircraft cannon supports for various test items.

[0034] First, generally refer to Figure 1 and Figure 2 . The test bench for ground shooting of an aircraft cannon as an exemplary embodiment of the utility model includes a base plate 1, a gun bed 2, and a cushion seat 3. The base plate 1 is used to support the gun bed 2, the cushion seat 3, and the test aircraft cannon, and is installed on the ground shooting test site of the aircraft cannon through anchor bolts. The gun bed 2 and the cushion seat 3 are used to jointly connect the aircraft cannon through the aircraft cannon support.

[0035] Combined with Figure 3 , the gun bed 2 can be in a cuboid shape, fixedly connected to the base plate 1, and a plurality of first T-shaped grooves 21 parallel to the symmetry plane of the aircraft cannon are arranged at one end of the upper surface, that is, one end in the length direction. A shell ejection chamber leading from the upper surface to the inside is provided in the middle of the gun bed 2, which can accommodate the shell ejection requirements of various models of aircraft cannons (for some aircraft cannons that eject shells forward on both sides outside the tabletop, there is no influence). To facilitate the fixation of the gun bed 2, U-shaped gaps 22 opening outward are respectively provided at the two end faces of the gun bed 2 for connecting the gun bed 2 to the base plate 1. Specifically, the first bolt 101 can pass through the U-shaped gap on the bottom surface of the U-shaped gap 22 and pass through the base plate 1 to achieve the connection between the gun bed 2 and the base plate 1. The tail end gap also has the function of taking out the cartridge cases in the chamber. To more firmly connect the gun bed 2 to the base plate 1, a through groove 23 parallel to the U-shaped gap 22 is opened in the middle of the gun bed 2, and U-shaped gaps for passing bolts are processed on both sides of the bottom of the through groove 23 to connect the gun bed 2 to the base plate 1. A groove 24 is provided at the other end of the upper surface of the gun bed 2 for receiving the cushion seat 3 to achieve the connection of the aircraft cannon support. In addition, side T-shaped grooves 25 parallel to the first T-shaped grooves 21 can be provided on the two side surfaces of the gun bed 2 for passing through the pull rod 7 to be specifically described below.

[0036] Combined with Figure 4The pad 3 can be a flat plate, embedded in the groove 24 at the other end of the upper surface of the gun bed 2, and the pad 3 is flush with the gun bed 5, that is, it does not protrude beyond the upper surface of the gun bed 5, so as to connect the aircraft gun support. The second bolt 102 can pass through the stepped hole 32 on the pad 3 and through the gun bed 2, with the head of the bolt recessed into the stepped hole 32. The pad 3 is provided with a plurality of second T-slots 31 perpendicular to the first T-slot 21. The first T-slots 21 and the second T-slots 31 together connect the aircraft gun to the gun bed 2. The T-slots on the pad 3 and the T-slots on the gun bed 2 are arranged horizontally and vertically, so that the strength can meet the requirements of the maximum recoil force during aircraft gun firing. In addition, two T-slots that penetrate the first T-slot 21 can be provided on both sides of the pad 3 to facilitate the passage of the fixing bolts of the gun bed support. With this structure, the gun bracket does not require the fabrication of a special transition steel plate during installation. The bracket's front, back, left, and right installation positions can be adjusted by sliding its own fixing bolts in the longitudinal and transverse grooves of the test platform to meet the impact point requirements, making installation convenient and quick.

[0037] Combination Figure 5 The test bench of this utility model may also include a base 4 made of cement mortar to stabilize the installation foundation. The base plate 1 is fixed to the base 4 by anchor bolts 100. The anchor bolts 100 can pass through the mounting holes 41 on the base 4 and through the base plate 1. Cement mortar can be poured into the mounting holes 41 to fix the anchor bolts 100.

[0038] Combination Figure 6 , Figure 7 and Figure 8 To facilitate the processing, installation, and connection of the base plate, the base plate 1 may include a first plate 11, a second plate 12, and a third plate 13 arranged sequentially along the axial direction of the gun bed 2. These plates may be made of cast iron, especially cast iron HT250, which has good shock absorption and impact resistance. The first plate 11 is closer to the pad 3 and may be wider at the front and narrower at the back for easy installation. It should be understood that the terms "front" and "rear" used in this document to indicate direction refer to the firing direction of the cannon; the firing direction is front, and the opposite direction is rear. The first plate 11 may be provided with a plurality of T-slots 111 perpendicular to the first T-slot 21, and the third plate 13 may be provided with a plurality of T-slots 131 parallel to the first T-slot 21. The T-slots on each plate extend parallel to each other. The first bolt 101 may pass through these T-slots and through the U-shaped notch on the gun bed and be fastened with a nut to connect the base plate to the gun bed. In other words, the T-slot 111 on the first plate 11 is perpendicular to the T-slot 131 on the third plate 13. This horizontal and vertical T-slot connection structure makes the strength more in line with the recoil requirements of the cannon firing.

[0039] To facilitate observation of the connection between the substrate 1 and the base 4, the first plate 11, the second plate 12 and the third plate 13 are provided with U-shaped grooves with downward openings perpendicular to the first T-shaped groove 21 on the surface facing away from the cannon, that is, on the surface connected to the base 4. Specifically, the U-shaped groove 112 on the first plate 11, the U-shaped groove 121 on the second plate 12 and the U-shaped groove 132 on the third plate 13.

[0040] In addition, the first plate 11, the second plate 12 and the third plate 13 are all provided with stepped holes for passing through the anchor bolt 100 and accommodating the nut that mates with it, namely stepped hole 113 on the first plate 11, stepped hole 122 on the second plate 12 and stepped hole 133 on the third plate 13.

[0041] In some embodiments, the ejection chamber of the test bench is located on one side of the through groove 23 of the firing table 2, and both ends are closed by two baffles connected to the firing table 2. Each baffle is installed perpendicular to the axial direction of the firing table 2. The two baffles are a first baffle 5 and a second baffle 6, respectively. The first baffle 5 is located in the through groove 23, and the second baffle 6 is located at the end face of the firing table 2 and is provided with a handle 8. Figure 1 (as shown in the image) to facilitate the installation and removal of baffle 6.

[0042] Figure 9 and Figure 10 The first baffle and the second baffle are shown respectively. The first baffle 5 has multiple through holes 51, and the second baffle 6 has multiple corresponding U-shaped grooves 61. The pull rod 7 can pass through the through holes 51 on the first baffle 5 and the U-shaped grooves 61 on the second baffle 6 and pass through the side T-shaped groove 25 on the gun bed 2 to connect.

[0043] The working process of the test bench for ground firing of aircraft cannons provided by this utility model will be described by way of example:

[0044] Step 1: Pour cement mortar to form base 4. Before constructing the base, determine its orientation, and its center should point towards the blasting site. During the construction of the base, ensure its levelness. After construction, wait for the cement mortar to completely solidify before carrying out other installation work.

[0045] Step 2: Place the substrate 1, especially the first plate 11, the second plate 12, and the third plate 13, on the base 4 by installing the anchor bolts 100 in their respective stepped holes with nuts, so that the anchor bolts 100 are in the corresponding mounting holes 41 on the base.

[0046] Step 3: Connect the blasting bed 2 to the corresponding T-slots on the first plate 11, the second plate 12, and the third plate 13 using the first bolt 101 and the matching nut. After adjusting the horizontal planes and installation gaps between them, pour cement mortar into the mounting holes 41 of the base 4 to fix the anchor bolts 100.

[0047] Step 4: Fix the first baffle 5 and the second baffle 6 to the blasting bed 2 using the tie rod 7 and the matching nut;

[0048] Step 5: Secure the pad 3 into the groove 24 at the front end of the gun bed 2 using the second bolt 102 and the matching nut. At this point, the test bench is installed. The corresponding gun bracket for the test gun can then be slidably adjusted using its fixing bolts within the first T-slot 21 on the upper surface of the gun bed 2 and the second T-slot 31 on the pad 3, until the impact point requirements are met. The installation of the gun bracket does not require a special transition steel plate, making installation convenient and quick. Furthermore, if the function of the test bench changes, the test bench, except for the base, can be disassembled; the base can be reconstructed and reinstalled at a different location.

[0049] As described above, the test bench for ground firing of aircraft cannons of this utility model has a gun bed installed at the test site via a base plate. The aircraft cannon with a support can be installed on the gun bed via T-slots on the gun bed and the pad, which is compatible with the gun supports of various existing aircraft cannon models. The base plate is fixed with anchor bolts, and the gun bed is equipped with a pad. The T-slots on the pad are arranged horizontally and vertically with the T-slots on the gun bed, so that the strength meets the maximum recoil requirements during aircraft cannon firing. The ejection window position in the middle of the test table can accommodate the ejection requirements of various aircraft cannons. The aircraft cannon support does not require the fabrication of a special transition steel plate during installation. The front, back, left, and right installation positions of the support can be adjusted by sliding in the longitudinal and transverse slots of the test table via its own fixing bolts to meet the impact point requirements, making installation convenient and quick.

[0050] Finally, it should be noted that the features mentioned and / or shown in the above description of exemplary embodiments of the present invention can be combined in the same or similar manner with one or more other embodiments, combined with features in other embodiments, or substituted for corresponding features in other embodiments. These combined or substituted technical solutions should also be considered as included within the protection scope of the present invention.

Claims

1. A test rig for ground firing of aircraft cannons, characterized in that: Includes base plate, gunning bed, and mounting base; The base plate is used to be installed to the ground firing test site of the aircraft gun by anchor bolts to support the gun bed and the pad; The gun bed is used to connect the aircraft gun via the aircraft gun bracket. The gun bed is fixed to the base plate and has a plurality of first T-shaped grooves parallel to the plane of symmetry of the aircraft gun arranged at one end of the upper surface. The gun bed has an ejection chamber that extends from the upper surface to the interior in the middle. The pad is embedded at the other end of the upper surface of the gun bed, and the pad is provided with a plurality of second T-slots perpendicular to the first T-slot. The first T-slot and the second T-slot together connect the aircraft gun to the gun bed.

2. The test rig for ground firing of aircraft cannons according to claim 1, characterized in that: It also includes a base made of cement mortar, the base plate being fixed to the base by anchor bolts.

3. The test rig for ground firing of aircraft cannons according to claim 1 or 2, characterized in that: The base plate includes a first plate, a second plate, and a third plate arranged sequentially along the axial direction of the gun bed. The first plate is closer to the pad. The first plate, the second plate, and the third plate are all provided with stepped holes through which anchor bolts pass and which accommodate nuts that mate with the anchor bolts.

4. The test rig for ground firing of aircraft cannons according to claim 3, characterized in that: The first plate and the third plate are provided with a plurality of mutually perpendicular T-slots. The T-slots on each plate extend in parallel, and the T-slots on the first plate are perpendicular to the first T-slot.

5. The test rig for ground firing of aircraft cannons according to claim 3, characterized in that: The first plate, the second plate, and the third plate are provided with U-shaped grooves with downward openings that are perpendicular to the first T-shaped groove on their surfaces facing away from the cannon.

6. The test rig for ground firing of aircraft cannons according to claim 1 or 2, characterized in that: The two ends of the ejection chamber are respectively closed by two baffles connected to the gun bed, and each baffle is installed perpendicular to the axial direction of the gun bed.

7. The test rig for ground firing of aircraft cannons according to claim 6, characterized in that: One of the two baffles is located at the end face of the blasting bed and is equipped with a handle.

8. The test rig for ground firing of aircraft cannons according to claim 6, characterized in that: The two baffles are connected by a tie rod passing through the two baffles and the blasting bed.

9. The test rig for ground firing of aircraft cannons according to claim 1 or 2, characterized in that: The two end faces of the gun bed are respectively provided with U-shaped notches with outward openings, which are used to connect the gun bed to the base plate.

10. The test rig for ground firing of aircraft cannons according to claim 9, characterized in that: The middle part of the gun bed has a through groove parallel to the U-shaped notch, so as to connect the gun bed to the base plate.

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