CN204832503U - Mil si is battle array multidimension degree test installation device alternately - Google Patents

Abstract

The utility model provides a Mills cross array multi-dimensional test installation device, which comprises an L-shaped horizontal beam, a T-shaped rotating sleeve, a T-shaped positioning sleeve, a base array adapter frame, bolts and reinforcing ribs. The L-shaped horizontal The flange on the beam is fixed to the test platform with bolts. The L-shaped horizontal beam passes through the horizontal tube of the T-shaped rotary sleeve and is fixed through the holes provided by the bolts. The vertical circular tube of the T-shaped rotary sleeve passes through the sleeve. In the vertical tube of the T-shaped positioning sleeve, rotate the T-shaped rotary sleeve to an angle and then use the bolt to pass through the hole corresponding to the angle on the vertical tube of the T-shaped positioning sleeve to fix it. The level of the T-shaped positioning sleeve The round tube is set on the back end round tube of the base array adapter frame, and can be fixed in the orthogonal direction. The utility model can realize the multi-dimensional testing of the Mills cross array through different assembly methods, thus forming the Mills cross Array multi-dimensional test installation device, simple and flexible structure, easy to operate.

Description

Mills cross array multi-dimensional test installation device

technical field

The utility model relates to a test installation device for a Mills cross array, in particular to a multi-dimensional test installation device for a Mills cross array, which belongs to the field of underwater acoustics.

Background technique

The sonar array test installation device is a mechanical structure that must be used when testing the acoustic array in the field of underwater acoustics. The base array tests specific indicators; at the same time, the device also serves as a transmission device to transmit the rotation, walking and other actions of the test platform to the base array, so that the base array can make corresponding actions during the test process. Mill's CrossArray is one of the most typical combined structure arrays in underwater acoustic engineering, usually including a transmitting sub-array and a receiving sub-array, and the aperture directions of the two sub-arrays are perpendicular to each other, and the radiation planes are on the same horizontal plane.

When testing the comprehensive performance index of the Mills cross array, it is necessary to fix the Mills cross array on the test platform, and test the transmitting sub-array and the receiving sub-array from different dimensions, or even by rotating and other actions, such as transmitting The directivity test of the sub-array needs to be rotated in both horizontal and vertical directions around the sound center of the transmitting sub-array; the directivity test of the receiving sub-array needs to be rotated in both horizontal and vertical directions around the sound center of the receiving sub-array; The level needs to be tested on the normal line of the radiation surface of the transmitting sub-array passing through the sound center; the sensitivity of the receiving sub-array needs to be tested on the normal line of the base surface of the receiving sub-array passing through the sound center, etc. Therefore, during the Mills cross array test, the relative position of the Mills cross array and the test platform needs to be adjusted for each index or even the test of each dimension, and the acoustic center of the tested sub-array must be rotated during the rotation process. axis, otherwise it will cause test index error. If different installation devices are designed for different test situations of the same Mills cross array, it will obviously cause a lot of waste, and will also increase the cost and complexity of the test work. How to use a set of installation devices to realize the special requirement of testing the Mills cross array in different dimensions is one of the important problems that underwater acoustic technicians urgently need to solve.

Contents of the invention

The purpose of this utility model is to provide a Mills with flexible use, low processing and testing complexity and low cost in order to realize the testing of various indicators of the Mills cross array transmitting sub-array and receiving sub-array from multiple dimensions. Cross-array multi-dimensional test setup.

The purpose of this utility model is achieved in that it comprises an L-shaped horizontal beam, a T-shaped rotating sleeve, a T-shaped positioning sleeve and a matrix adapter frame, and the end of the vertical tube of the L-shaped horizontal beam is provided with a The flange connected to the rotating device on the test platform, the horizontal tube of the L-shaped horizontal beam is provided with at least two sets of rotating sleeve mounting holes along the length direction, and each set of rotating sleeve mounting holes includes two rows of mutually perpendicular rotating sleeves pipe installation holes, and each row has two rotating sleeve installation holes, the horizontal tube of the T-shaped rotating sleeve is provided with two No. The horizontal pipe of the T-shaped rotating sleeve is fixedly connected through two No. 1 through holes, any row of rotating sleeve mounting holes and corresponding bolts. The vertical pipe of the T-shaped rotating sleeve is provided with two positioning sleeve mounting holes. , the circumference of the vertical tube of the T-shaped positioning sleeve is evenly provided with at least two rows of No. 2 through holes, and there are two No. 2 through holes in each row. The vertical tube sleeve of the T-shaped positioning sleeve The vertical tube of the T-shaped rotary sleeve is fixedly connected through any row of No. 2 through holes, two positioning sleeve installation holes and corresponding bolts, and the horizontal tube of the T-shaped positioning sleeve is provided with two base arrays. There are two rows of No. 3 through holes perpendicular to each other on the base array adapter frame, and there are two No. 3 through holes in each row. The base array adapter frame is inserted into the T-shaped positioning sleeve. In the horizontal pipe, through the No. 3 through hole in any row, the installation holes of the two array adapters and the corresponding bolts are fixedly connected, and the array adapter is connected to the measured Mills cross array through the flange provided at the end .

The utility model also includes such structural features:

1. The distance between the two rotating sleeve mounting holes in each row is equal to the distance between the two No. 1 through holes, and the distance between the two positioning sleeve mounting holes is the same as the two No. 2 through holes in each column. The distance between them is equal, and the distance between the mounting holes of the two matrix adapter frames is equal to the distance between the two No. 3 through holes in each row.

2. The corners of the L-shaped horizontal beam, the T-shaped rotating sleeve, and the T-shaped positioning sleeve are all provided with reinforcing ribs.

Compared with the prior art, the utility model has the following beneficial effects: (a) Reusability: by using a set of installation device, only by changing the assembly structure and assembly method of the device, the Mills cross matrix can be satisfied in different dimensions. The installation requirements for accurate testing of various indicators such as the horizontal/vertical directivity of the transmitting sub-array, the horizontal/vertical directivity of the receiving sub-array, the sound source level of the transmitting sub-array, and the sensitivity of the receiving sub-array; (b) Fitability: the utility model The device is composed of four main components, and the fixation between components of different assembly methods can be realized only through the positioning holes on each component; (c) Portability: the installation device of the utility model can be disassembled into small-volume components, which is more convenient for storage and Transportation for field experiments; (d) Flexibility: mainly through three assembly methods, and only adjusting the installation of components from three dimensions, the installation requirements of the various indicators of the Mills cross array test can be realized, as follows:

A: When rotating the base array adapter (4) to make the Mills cross array fixedly connected with the installation device of the present invention in a positive "T" manner (dimension 1—the base array adapter (4) rotates), through the rotation The T-shaped rotating sleeve (2) makes the L-shaped horizontal beam (1) parallel to the rear-end round tube of the array adapter frame (4) (dimension 2—the T-shaped rotating sleeve (2) rotates), and at the same time adjusts the L-shaped The length of the horizontal beam (1) protruding from the T-shaped rotating sleeve (2) (dimension 3—the extension length of the L-shaped horizontal beam (1) is adjusted), so that the axis of the flange on the L-shaped horizontal beam (1) is in line with the The center line of the radiation surface of the Mills cross array transmitting sub-array and receiving sub-array coincides. This assembly structure and method can meet the horizontal directivity of the transmitting sub-array and the vertical directivity of the receiving sub-array as well as the sound source level of the transmitting sub-array and the sensitivity of the receiving sub-array. Installation requirements for parameter measurement;

B: Rotate the matrix adapter frame (4) to make the Mills cross array fixedly connected to the installation device of the present invention in a sideways "T" shape (dimension 1 - the matrix adapter frame (4) rotates), through Rotate the T-shaped rotating sleeve (2) (dimension 2—the T-shaped rotating sleeve (2) rotates) and adjust the length of the L-shaped horizontal beam (1) protruding from the T-shaped rotating sleeve (2) (dimension 3—— L-shaped horizontal beam (1) protruding length adjustment), so that the axis of the upper flange of the L-shaped horizontal beam (1) coincides with the acoustic center of the Mills cross-array emission sub-array, this assembly structure can meet the vertical direction of the emission sub-array The installation requirements for the measurement of parameters such as reliability, sound source level of the transmitting sub-array, and sensitivity of the receiving sub-array;

C: Rotate the base array adapter frame (4) to make the Mills cross array fixedly connected with the installation device of the utility model in a sideways "T" manner (dimension 1—the base array adapter frame (4) rotates), through Rotate the T-shaped rotating sleeve (2) (dimension 2—the T-shaped rotating sleeve (2) rotates) and adjust the length of the L-shaped horizontal beam (1) protruding from the T-shaped rotating sleeve (2) (dimension 3—— L-shaped horizontal beam (1) protruding length adjustment), so that the axis of the upper flange of the L-shaped horizontal beam (1) coincides with the acoustic center of the Mills cross array receiving sub-array, this assembly method and structure can meet the requirements of the receiving sub-array Installation requirements for the measurement of parameters such as horizontal directivity, receiving sub-array sensitivity, and transmitting array sound source level.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the structural representation of the L-shaped horizontal beam of the present utility model;

Fig. 3 is the structural representation of the T-type rotary sleeve of the present utility model;

Fig. 4 is the structural representation of the T-shaped positioning sleeve of the present utility model;

Fig. 5 is a structural schematic diagram of the array adapter frame of the present invention;

Fig. 6 is the structural representation of the Mills intersection matrix to be measured of the utility model;

Figure 7(a), Figure 7(b), Figure 7(c) and Figure 7(d) are the front view, rear view, top and side views;

Figure 8(a), Figure 8(b), Figure 8(c) and Figure 8(d) are the front view, rear view, top view and side view of the vertical directivity test of the Mills cross array transmitting sub-array respectively;

Figure 9(a), Figure 9(b), Figure 9(c) and Figure 9(d) are the front view, rear view, top view and side view of the horizontal directivity test of the receiver sub-array of the Mills cross array, respectively.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figure 1, the Mills cross array multi-dimensional test installation device described in the utility model includes: L-shaped horizontal beam 1, T-shaped rotating sleeve 2, T-shaped positioning sleeve 3, and base array adapter frame 4 , bolt 5 and reinforcing rib 6. The hoisting flange on the L-shaped horizontal beam 1 is fixed with a test platform by bolts, and a bolt in the utility model is marked as 5 in Fig. 1 .

The L-shaped horizontal beam 1 passes through the horizontal pipe of the T-shaped rotating sleeve 2 and fixes both through the through holes provided thereon with bolts; the L-shaped horizontal beam 1 has multiple sets of mounting holes for the rotating sleeve 7 (through holes), each group of rotating sleeve mounting holes includes two rows of mutually perpendicular rotating sleeve mounting holes 7, and each row has two rotating sleeve mounting holes 7, and each row of two rotating sleeve mounting holes 7 is the same as the size and spacing of the two No. 1 through holes 8 on the horizontal tube of the T-shaped rotating sleeve 2 (as shown in Figure 2 and Figure 3), and can be adjusted by selecting the mounting hole of the rotating sleeve on the L-shaped horizontal beam 1 It extends out the length of the T-shaped rotary sleeve 2, and a pair of bolts are used to pass through the corresponding holes to fix the two.

The vertical circular tube of the T-shaped rotating sleeve 2 is inserted into the vertical circular tube of the T-shaped positioning sleeve 3; the horizontal circular tube of the T-shaped positioning sleeve 3 is sleeved on the rear end circular tube of the matrix adapter frame 4 ,As shown in Figure 1. The vertical tube of the T-shaped positioning sleeve 3 is vertically arranged with multiple pairs of No. 2 through holes 10 along the circumference, that is, the vertical tube of the T-shaped positioning sleeve is evenly provided with at least two rows of holes on the circumference of the vertical tube. No. two through holes 10, every column No. two through holes 10 has two, and the size and spacing of every pair of No. two through holes are identical with the positioning sleeve mounting holes 9 on the vertical circular tube of the T-shaped rotating sleeve 2 (as shown in FIG. 3. Figure 4). The T-shaped rotating sleeve 2 can be rotated after passing through the T-shaped positioning sleeve 3, and after turning to a preset angle, use a pair of bolts to pass through the vertical circular tube of the T-shaped positioning sleeve 3 and the T-shaped rotating sleeve 2 The holes corresponding to the angle on the vertical tube fix the two.

There are two pairs of orthogonal No. 3 through holes 12 on the rear end tube of the array adapter frame 4, that is to say, the array adapter frame is provided with two rows of mutually perpendicular No. 3 through holes 12, and each row There are two No. 3 through holes, and the size and spacing of every pair of No. 3 through holes 12 are identical with the size and spacing of the two base array adapter mounting holes 11 on the base array adapter frame 4 horizontal round tubes (as shown in FIG. 4, as shown in Figure 5). By adjusting the through holes on the rear end of the array adapter frame 4, the installation direction of the Mills cross array to be tested can be changed to a positive "T" type installation or a sideways "T" type installation. The hole realizes the fixing of both.

The corners of the L-shaped horizontal beam 1 , the T-shaped rotating sleeve 2 and the T-shaped positioning sleeve 3 are all provided with reinforcing ribs 6 , as shown in FIG. 2 , FIG. 3 and FIG. 4 .

The array adapter frame 4 is connected and fixed to the Mills cross array to be tested through its upper flange.

In the utility model, the flange plate connected to the test platform on the L-shaped horizontal beam 1 and the flange plate on the array adapter frame 4 can be designed into different shapes according to the shapes of the platform and the array flange.

In order to express the specific implementation of the present utility model more clearly, to measure the Mills intersection matrix as shown in Figure 6, wherein: the horizontal one is the receiving sub-array, and the vertical one is the horizontal sum of the transmitting sub-array transmitting sub-array and the receiving sub-array The directivity in two vertical dimensions is taken as an example to give specific application examples. The flange on the L-shaped horizontal beam 1 is connected to the rotating device of the measurement platform, and the directivity measurement is realized by rotating the rotating device. Therefore, it is required that the acoustic center of the corresponding sub-array should be on the rotation axis when measuring each directivity. There are three assembly methods to achieve the above directivity measurement, specifically:

(1) The measurement assembly methods of the horizontal directivity of the transmitting sub-array and the vertical directivity of the receiving sub-array are shown in Figure 7(a), Figure 7(b), Figure 7(c) and Figure 7(d);

(2) See Figure 8(a), Figure 8(b), Figure 8(c) and Figure 8(d) for the assembly method of the vertical directivity measurement of the transmitting sub-array;

(3) See Figure 9(a), Figure 9(b), Figure 9(c) and Figure 9(d) for the assembly method of receiving sub-array horizontal directivity measurement.

In addition to the specific implementation of the above examples, all related technical solutions formed by equivalent replacement or equivalent modification all fall within the protection scope of the utility model patent requirements.

Claims (3)

1. Mills cross array multi-dimensional test installation device is characterized in that: it comprises L-shaped horizontal beam, T-shaped rotating sleeve, T-shaped positioning sleeve and base array adapter frame, the vertical tube of said L-shaped horizontal beam The end of the test platform is provided with a flange connected to the rotating device on the test platform. The horizontal tube of the L-shaped horizontal beam is provided with at least two sets of rotating sleeve mounting holes along the length direction. Each set of rotating sleeve mounting holes includes two Rows of rotating sleeve mounting holes perpendicular to each other, and each row has two rotating sleeve mounting holes, the horizontal tube of the T-shaped rotating sleeve is provided with two No. 1 through holes, and the horizontal tube of the T-shaped rotating sleeve It is set on the horizontal pipe of the L-shaped horizontal beam and fixedly connected through two No. 1 through holes, any row of rotating sleeve installation holes and corresponding bolts. The vertical pipe of the T-shaped rotating sleeve is provided with two Two positioning sleeve mounting holes, the vertical pipe of the T-shaped positioning sleeve is evenly provided with at least two No. 2 through holes on the circumference, and there are two No. 2 through holes in each row. The T-shaped positioning sleeve The vertical tube of the T-shaped rotary sleeve is sleeved on the vertical tube of the T-shaped rotary sleeve and fixedly connected through any row of No. 2 through holes, two positioning sleeve installation holes and corresponding bolts. The horizontal tube of the T-shaped positioning sleeve There are two mounting holes for the matrix adapter frame, and two rows of No. 3 through holes perpendicular to each other are arranged on the matrix adapter frame, and there are two No. 3 through holes in each row. The matrix adapter frame is inserted into the The horizontal tube of the T-shaped positioning sleeve is fixedly connected through the No. 3 through hole in any row, the installation holes of the two base array adapter frames and the corresponding bolts, and the base array adapter frame is connected with the Measuring the Mills cross matrix connection. 2. A kind of Mills cross array multi-dimensional test installation device according to claim 1, characterized in that: the distance between the two rotating sleeve installation holes of each row and the distance between the two No. 1 through holes equal, the distance between the mounting holes of the two positioning sleeves is equal to the distance between the two No. The distances between the through holes are equal. 3. A Mills cross array multi-dimensional test installation device according to claim 1 or 2, characterized in that: the corners of the L-shaped horizontal beam, the T-shaped rotating sleeve, and the T-shaped positioning sleeve are all arranged There are ribs.