Universal radome hammering mechanism

Abstract

The utility model discloses a universal radome hammering mechanism, and belongs to the technical field of test detection equipment. The radome hammering mechanism overcomes the defects that a traditional radome hammering mechanism in the prior art cannot simulate an external actual overload environment, cannot protect the radome from being broken and flying under high overload and is difficult to disassemble after a tested piece is subjected to large overload deformation. The main body structure of the radome hammering device comprises a hammering block, a radome hammering seat and a guide block used for radially guiding the hammering block, the radome hammering seat is an L-shaped plate, and the lower end face of the L-shaped plate is provided with external threads used for being in threaded connection with a pendulum bob of a Marchit hammering test stand. The side face of the radome hammering base is connected with the two ends of a guide block through a second threaded hole, a second screw and a first threaded hole, a guide groove used for installing the hammering block is formed in the middle of the guide block, a top plate is arranged on the guide block, a first screw penetrates through the top plate, and the upper end face of the hammering block abuts against the first screw. The device is mainly used for hammering the satellite antenna housing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to test detection equipment technical field, concretely speaking, especially relate to a general hammering antenna cover mechanism. BACKGROUND

[0002] In the process of satellite antenna cover hammering, the real overload environment often needs to be simulated to verify the satellite antenna cover anti-overload capacity, but this operation is difficult to realize, and there are various safety hazards such as antenna cover breakage and flying. The antenna cover hammering mechanism used in the prior art is only composed of a fixed-pitch threaded base, which has the following disadvantages:

[0003] 1. It cannot simulate the actual external overload environment, and cannot protect the antenna cover from breaking and flying under high overload;

[0004] 2. It is difficult to disassemble the test piece after it is deformed under a large overload, increasing the operation difficulty and maintenance cost;

[0005] 3. Due to the lack of accurate guiding mechanism, the hammering force cannot always act on the predetermined position accurately, resulting in low repeatability and accuracy of test results;

[0006] 4. Different models and sizes of antenna covers require different fixing methods, and the traditional device cannot be quickly adjusted to adapt to various types of antenna covers, limiting the test efficiency;

[0007] 5. For antenna covers with special shapes, such as curved or irregular structures, ordinary hammering blocks cannot provide uniform pressure distribution, which may cause local stress concentration and affect the authenticity and reliability of the test. CONTENT OF THE UTILITY MODEL

[0008] The utility model solves the technical problems of the prior art and provides a general hammering antenna cover mechanism.

[0009] In order to achieve the above purpose, the utility model is implemented by adopting the following technical scheme:

[0010] A general hammering antenna cover mechanism, comprising a hammering block, an antenna cover hammering seat and a guide block for radially guiding the hammering block, the antenna cover hammering seat is an L-shaped plate, the lower end face of the L-shaped plate is provided with an external thread for thread connection with the pendulum of a Marseilles hammering test bench, the side face of the antenna cover hammering seat is connected with both ends of the guide block through the threaded hole two, the screw two and the threaded hole one, the middle of the guide block is provided with a guide groove for mounting the hammering block, the guide block is provided with a top plate, the top plate is penetrated by a screw one, and the upper end face of the hammering block is in contact with the screw one.

[0011] Preferably, the radome hammering seat is provided with a mounting hole for mounting the radome, the radome is mounted on the radome hammering seat through the mounting hole, and the radome is arranged at the lower end of the hammering block.

[0012] Preferably, the guide block is in a U-shaped structure, and the top plate is mounted on the middle upper end face of the U-shaped structure.

[0013] Preferably, the lower end face of the hammering block is in an arc-shaped structure matched with the radome.

[0014] Preferably, the screw one and the screw two are both internal hexagonal cylindrical head screws.

[0015] Preferably, the screw two is provided with two to six.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. The satellite radome is constrained through the mutual cooperation of the hammering block and the internal hexagonal cylindrical head screw, so that the distortion of the measurement result caused by the rebound force without constraint is avoided.

[0018] 2. The actual overload environment caused by the external gunpowder gas is simulated by the hammering block, the lower end face of the hammering block is in an arc-shaped structure matched with the radome, the contact surface shape of the hammering block can be adjusted to adapt to the hammering strength test of other similar parts, the universality is high, and the installation and dismounting are simple and convenient.

[0019] 3. The tested radome can be fixedly loaded in a direction and protected during the hammering process through the mutual cooperation of the hammering block, the radome hammering seat and the guide block.

[0020] 4. The radial guidance of the hammering block is provided through the guide block, so that the hammering force can accurately act on the radome, the accuracy and repeatability of the test result are improved, the radome hammering seat designed in the L-shaped plate not only provides a stable mounting base, but also allows the quick and reliable connection with the pendulum of the Marhsall hammering test table through the external thread of the lower end face.

[0021] 5. The problem that the tested radome is difficult to dismount after being deformed due to the integral design is avoided through the combined mounting mode, and the dismounting is time-saving and labor-saving.

[0022] In summary, the utility model is suitable for various requirements in the satellite radome hammering strength test, can also adapt to the strength test of other similar radomes by adjusting the contact surface shape of the hammering block, has the advantages of simple structure, reliable action and wide application, effectively improves the test authenticity and safety, and can be applied to various working environments in the satellite radome hammering strength test. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1The utility model discloses a structure schematic diagram of the utility model;

[0024] Figure 2 The utility model discloses the main view of installation use state of the utility model;

[0025] Figure 3 The utility model discloses the plan view of installation use state of the utility model;

[0026] Figure 4 The utility model discloses the structure schematic diagram of the utility model in guide block;

[0027] Figure 5 The utility model discloses the structure schematic diagram of the utility model in antenna cover hammering seat;

[0028] Figure 6 The utility model discloses the structure schematic diagram of the utility model in hammering block.

[0029] In the drawing: 1, screw one;2, hammering block;3, guide block;4, antenna cover hammering seat;5, antenna cover;6, screw two;31, top plate;32, screw hole one;41, outer thread;42, mounting hole;43, screw hole two. Specific implementation

[0030] The utility model will be further explained below through specific embodiment and combining with the drawings.

[0031] Example 1:

[0032] As Figures 1-5 Shown, a kind of general hammering antenna cover mechanism, including hammering block 2, antenna cover hammering seat 4 and for the radial direction guiding effect of hammering block 2 guide block 3, the antenna cover hammering seat 4 is L type board, the lower end surface of L type board is provided with outer thread 41 for being connected with marshall hammering test bench pendulum screw thread, the antenna cover hammering seat 4 of L type board design not only provides stable installation foundation, and the outer thread 41 of lower end surface allows to carry out quick, reliable connection with marshall hammering test bench pendulum;The side of antenna cover hammering seat 4 is connected with the both ends of guide block 3 by screw hole two 43, screw two 6 and screw hole one 32, the middle of guide block 3 is provided with the guide groove for installing hammering block 2, guide block 3 is provided with top plate 31, screw one 1 is penetrated on top plate 31, and the upper end surface of hammering block 2 is in contact with screw one 1.

[0033] Example 2:

[0034] As Figure 5 Shown, a kind of general hammering antenna cover mechanism, and the difference of example 1 is that antenna cover hammering seat 4 is provided with mounting hole 42 for installing antenna cover 5, antenna cover 5 is installed on antenna cover hammering seat 4 by mounting hole 42, and antenna cover 5 is arranged at the lower end of hammering block 2.

[0035] AsFigure 4 As shown, the guide block 3 has a U-shaped structure, and the top plate 31 is installed on the upper middle surface of the U-shaped structure. The U-shaped structure saves space, ensures the stability and strength of the structure, and simplifies the assembly process.

[0036] like Figure 6 As shown, the lower end face of the hammer block 2 is an arc-shaped structure that matches the antenna cover 5. By adjusting the shape of the contact surface of the hammer block 2, it can be adapted to the hammer strength test of other similar parts, which is highly versatile and easy to install and disassemble.

[0037] Furthermore, both screw 1 and screw 6 are internal hexagon head screws, and there are four screws of screw 6. This modular installation avoids the problem of difficult disassembly caused by deformation of the radome 5 due to the integrated design, saving time and effort during disassembly.

[0038] The working principle of this utility model is as follows:

[0039] The radome hammer base 4 is connected to the Marshall impact test bench pendulum via external thread 41. A threaded hole is pre-drilled on the upper surface of the radome hammer base 4 to connect sensors as needed. By adjusting the thickness of the buffer material in the Marshall pendulum hammer base and the number of rotating teeth of the pendulum, real-time monitoring and adjustment of the hammer overload value and corresponding overload time can be achieved. The hammer block 2 is placed above the radome 5 and fixed to the radome hammer base 4 via screws and mounting holes 42. The gap between the hammer block 2 and the satellite radome 5 is adjusted by tightening screw 1, simulating the radial action of propellant gases on the radome 5 under real conditions while avoiding distortion of measurement results caused by unconstrained rebound force. It also provides protection, preventing the safety hazard of the radome 5 breaking and flying during the hammering process. The guide block 3 is installed on the radome hammer base 4 via four screws 6, providing radial guidance for the hammer block 2 so that its relative position to the test surface remains unchanged during the hammering process.

Claims

1. A universal hammering radome mechanism, characterized by: The application relates to a hammering block (2), a radome hammering seat (4) and a guide block (3) for radially guiding the hammering block (2), the radome hammering seat (4) is an L-shaped plate, the lower end surface of the L-shaped plate is provided with external threads (41) for being screwed with a pendulum of a Marhsall hammering test bench, the side surface of the radome hammering seat (4) is connected with the two ends of the guide block (3) through screws (6), the middle part of the guide block (3) is provided with a guide groove for mounting the hammering block (2), the guide block (3) is provided with a top plate (31), the top plate (31) is penetrated by a screw (1), and the upper end surface of the hammering block (2) is in contact with the screw (1).

2. The universal hammer-antenna-hood mechanism of claim 1, wherein: The radome hammering seat (4) is provided with mounting holes (42) for mounting a radome (5), the radome (5) is mounted on the radome hammering seat (4) through the mounting holes (42), and the radome (5) is arranged at the lower end of the hammering block (2).

3. The universal hammer-antenna-hood mechanism of claim 1, wherein: The guide block (3) is in a U-shaped structure, and the top plate (31) is arranged on the middle upper end surface of the U-shaped structure.

4. The universal hammer-antenna-hood mechanism according to any one of claims 1-3, characterized in that: The lower end surface of the hammering block (2) is in an arc-shaped structure matched with the radome (5).

5. The universal hammer-antenna-hood mechanism according to any one of claims 1-3, characterized in that: The screw (1) and the screw (6) are both internal hexagonal cylindrical head screws.

6. The universal hammer-antenna-hood mechanism of claim 5, wherein: The screw (6) is provided with two to six screws.

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