Transducer measuring mechanism

Abstract

The invention discloses a transducer measuring mechanism which is used for measuring acoustic parameters of a large-size heavy underwater acoustic transducer and comprises a sliding block, a connecting plate, a cross beam, a supporting ring, a thrust ball bearing, a worm gear, a positioning plate, a transducer clamp, a fixing block, a bearing seat, a worm, a stepping motor, a motor flange, a speed reducer, a hand wheel and a transducer. The two ends of the connecting plate are fixed to the sliding blocks respectively, the beam is fixed to the connecting plate, and the supporting ring is fixed to the beam. A seat ring of the thrust ball bearing is placed on the bottom face of the supporting ring, the seat ring and the supporting ring are welded and fixed, and the worm gear is fixed to a shaft ring of the thrust ball bearing. The positioning plate is fixed on the worm gear, and the transducer clamp is matched with the positioning plate for positioning; the fixing block is fixed to the end of the cross beam, the bearing seat is fixed to the fixing block, and the worm is fixed to the bearing seat and meshed with the worm gear. The transducer is convenient to clamp, the clamping time is saved, the measuring efficiency is improved, the labor intensity of workers is reduced, and the risk in the transducer mounting process is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of underwater acoustic measurement, and specifically relates to a transducer measurement mechanism. Background Art

[0002] In acoustic research and acoustic engineering, parameters such as the sensitivity and directivity of transducers are common acoustic performance parameters, so it is necessary to measure the acoustic parameters of transducers.

[0003] When measuring the directivity parameter of a transducer, the common measurement method is to first fix the transducer on a measurement fixture, and then fix the transducer fixture to a multi-dimensional motion mechanism. The multi-dimensional motion mechanism can usually move along the X, Y, and Z axes and rotate around the Z axis. When installing the transducer fixture, if the flange under the multi-dimensional motion mechanism is close to the water surface or the water tank is small and the installation space is limited, it will be difficult to install the transducer fixture, especially for some large-sized and heavy transducers, the installation will be even more difficult, and the installation process will be relatively dangerous. If you are not careful, you will get hurt. Summary of the Invention

[0004] In view of the above-mentioned deficiencies and defects of the prior art, the present invention provides a new transducer measurement mechanism, which can facilitate the clamping of the transducer, save the clamping time, improve the measurement efficiency, reduce the labor intensity of the measurement workers, reduce the risk during the installation of the transducer, and can realize the rapid rotation of the transducer when measuring the directivity parameter of the transducer, and can realize fine angle adjustment through the handwheel. After the transducer rotates to the specified position, the worm and worm gear mechanism can realize self-locking.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A transducer measurement mechanism for measuring the acoustic parameters of large-sized and heavy underwater acoustic transducers, including a slider, a connecting plate, a cross beam, a support ring, a thrust ball bearing, a worm gear, a positioning plate, a transducer fixture, a fixing block, a bearing seat, a worm, a stepping motor, a motor flange, a speed reducer, a handwheel, and a transducer.

[0006] The slider is installed on the guide rail above the water tank. Both ends of the connecting plate are fixed to the slider, the cross beam is fixed to the connecting plate, and the support ring is fixed to the cross beam.

[0007] The seat ring of the thrust ball bearing is placed on the bottom surface of the support ring and the two are welded and fixed. The worm gear is fixed to the shaft ring of the thrust ball bearing.

[0008] The positioning plate is fixed to the worm gear, and the transducer fixture is positioned in cooperation with the positioning plate.

[0009] The fixing block is fixed to the end of the cross beam, the bearing seat is fixed to the fixing block, and the worm is fixed to the bearing seat and meshes with the worm gear.

[0010] One end of the motor flange is fixed on the fixed block, and the other end is connected to the speed reducer. One end of the output shaft of the speed reducer is connected to the worm, and the other end is connected to the handwheel. The input end of the speed reducer is connected to the stepping motor.

[0011] Preferably, the number of the sliders is 4, and they can slide on the sink guide rail. The number of the connecting plates is 2. The two connecting plates connect the 4 sliders in pairs respectively. A cross beam is fixed on the connecting plates. The cross beam is processed from No. 10 channel steel and can bear a large load.

[0012] Preferably, the support ring is fixed on the cross beam by screws. The support ring is processed from stainless steel and has an approximately L-shaped cross section, which is used to fix the thrust ball bearing.

[0013] Preferably, the positioning plate is fixed on the worm gear by screws. There are 2 threaded holes for fixing the positioning plate on the worm gear at 0° and 180° directions respectively.

[0014] Preferably, the upper end of the positioning plate is in the shape of a pin, and there is a positioning hole corresponding to the corresponding part on the transducer fixture. The two can achieve cooperative positioning. The flange holes at the lower end of the transducer fixture correspond to the flange holes of the transducer, and the two can be fixed by screws.

[0015] Preferably, the inner diameters of the support ring, the thrust ball bearing and the worm gear are all greater than 600 mm, which is convenient for the large-size transducer to pass through the middle of the support ring, the thrust ball bearing and the worm gear, so as to facilitate the installation of the large-size transducer.

[0016] Preferably, the number of the fixed blocks and the bearing seats is 2. The 2 fixed blocks are respectively fixed at both ends of the cross beam, the 2 bearing seats are respectively fixed on the 2 fixed blocks, and both ends of the worm are respectively fixed on the 2 bearing seats and meshed with the worm gear.

[0017] Preferably, the stepping motor drives the worm to rotate through the speed reducer. The worm meshes with the worm gear to drive the worm gear to rotate, and drives the transducer fixed on the worm gear to rotate. The handwheel can perform fine adjustment of the rotation angle. After the transducer angle rotates to the specified position, the worm gear and the worm can achieve self-locking, and then the acoustic parameters of the transducer can be measured.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0019] 1. The transducer is convenient to clamp, saving the clamping time and improving the measurement efficiency;

[0020] 2. Reducing the labor intensity of the measurement workers and reducing the risks in the installation process of the transducer;

[0021] 3. When measuring the directivity parameters of a transducer, the transducer can be rotated quickly, and fine angle adjustment can be achieved through a handwheel. After the transducer rotates to a specified position, the worm and worm gear mechanism can achieve self-locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a schematic diagram of the application state of the present invention;

[0024] Figure 3 is a schematic top view of the present invention;

[0025] Figure 4 is a schematic sectional view of the present invention

[0026] Wherein: 1. slider, 2. connecting plate, 3. cross beam, 4. support ring, 5. thrust ball bearing, 6. worm gear, 7. positioning plate, 8. transducer fixture, 9. fixed block, 10. bearing seat, 11. worm, 12. stepping motor, 13. motor flange, 14. reducer, 15. handwheel, 16. transducer, 17. water tank, 18. guide rail. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] As Figures 1-4 shown, a transducer measuring mechanism is mainly used for measuring the acoustic parameters of large-size heavy underwater acoustic transducers.

[0030] The transducer measuring mechanism mainly consists of a slider 1, a connecting plate 2, a cross beam 3, a support ring 4, a thrust ball bearing 5, a worm gear 6, a positioning plate 7, a transducer fixture 8, a fixed block 9, a bearing seat 10, a worm 11, a stepping motor 12, a motor flange 13, a reducer 14, a handwheel 15, a transducer 16, and some screws, nuts, washers, etc.

[0031] First, install 4 sliders 1 on the guide rail 18 above the water tank 17. The water tank 17 and the guide rail 18 are already processed and installed measuring components. Fix the two ends of the connecting plate 2 to the slider 1 through screws respectively, and then fix the cross beam 3 to the connecting plate 2 through screws. There are threaded holes in the middle position of the cross beam 3, and the support ring 4 can be fixed on it through screws.

[0032] Place the seat ring of the thrust ball bearing 5 on the bottom surface of the support ring 4 and weld and fix the two. Then, install the balls, shaft rings, etc. of the thrust ball bearing 5 respectively. There are threaded holes on the shaft ring, and the worm gear 6 can be fixed to the shaft ring by screws.

[0033] There are 2 threaded holes on the worm gear 6 at 0° and 180° directions respectively, which can be used to fix the positioning plate 7. The positioning plate 7 is fixed to the worm gear 6 by screws. The upper end of the positioning plate 7 is in a pin shape, and there are positioning holes in the corresponding part of the transducer fixture 8, and the two can achieve mating positioning. The flange holes at the lower end of the transducer fixture 8 correspond to the flange holes of the transducer 16, and the two can be fixed by screws.

[0034] Fix the two fixing blocks 9 at both ends of the cross beam 3 respectively. Fix the two bearing seats 10 on the two fixing blocks 9 respectively. Both ends of the worm 11 are fixed on the two bearing seats 10 and mesh with the worm gear 6.

[0035] Fix one end of the motor flange 13 on the fixing block 9, connect the other end to the speed reducer 14. One end of the output shaft of the speed reducer 14 is connected to the worm 11, the other end is connected to the hand wheel 15, and the input end of the speed reducer 14 is connected to the stepping motor 12.

[0036] The stepping motor 12 drives the worm 11 to rotate through the speed reducer. The worm 11 meshes with the worm gear 6 to drive the worm gear 6 to rotate, and drives the transducer fixed on the worm gear 6 to rotate. The hand wheel 15 can perform fine adjustment of the rotation angle. After the angle of the transducer 16 rotates to the specified position, the worm gear 6 and the worm 11 can achieve self-locking, and then the acoustic parameters of the transducer can be measured.

[0037] Embodiment 2

[0038] The slider 1 can slide on the water tank guide rail. The two connecting plates 2 connect four sliders in pairs respectively. The cross beam 3 is fixed on the connecting plate 2 and is processed from No. 10 channel steel, which can carry a large load.

[0039] The support ring 4 is processed from stainless steel, and its cross section is approximately L-shaped, which is used to fix the thrust ball bearing 5.

[0040] The inner diameters of the support ring 4, the thrust ball bearing 5, and the worm gear 6 are all greater than 600 mm, and the large-size transducer can pass through them, which is convenient for the installation of the large-size transducer.

[0041] Although the specific embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these specific embodiments without departing from the principles and spirits. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transducer measuring mechanism for measuring the acoustic parameters of large-sized heavy underwater acoustic transducers, characterized in that It includes a slider (1), a connecting plate (2), a cross beam (3), a support ring (4), a thrust ball bearing (5), a worm gear (6), a positioning plate (7), a transducer fixture (8), a fixing block (9), a bearing block (10), a worm (11), a stepping motor (12), a motor flange (13), a speed reducer (14), a hand wheel (15) and a transducer (16). The slider (1) is installed on the guide rail (18) above the water tank (17). Both ends of the connecting plate (2) are fixed to the slider (1). The cross beam (3) is fixed to the connecting plate (2), and the support ring (4) is fixed to the cross beam (3). The seat ring of the thrust ball bearing (5) is placed on the bottom surface of the support ring (4) and the two are welded and fixed. The worm gear (6) is fixed to the shaft ring of the thrust ball bearing (5). The positioning plate (7) is fixed to the worm gear (6), and the transducer fixture (8) is positioned in cooperation with the positioning plate (7). The fixing block (9) is fixed to the end of the cross beam (3). The bearing block (10) is fixed to the fixing block (9). The worm (11) is fixed to the bearing block (10) and meshes with the worm gear (6). One end of the motor flange (13) is fixed to the fixing block (9), and the other end is connected to the speed reducer (14). One end of the output shaft of the speed reducer (14) is connected to the worm (11), and the other end is connected to the hand wheel (15). The input end of the speed reducer (14) is connected to the stepping motor (12).

2. The transducer measuring mechanism according to claim 1, characterized in that: The number of the sliders (1) is 4, and they can slide on the water tank guide rail. The number of the connecting plates (2) is 2. The two connecting plates (2) connect the 4 sliders in pairs respectively. The cross beam (3) is fixed to the connecting plate (2). The cross beam (3) is processed from a No. 10 channel steel and can bear a large load.

3. The transducer measuring mechanism according to claim 1, wherein: The support ring (4) is fixed to the cross beam (3) by screws. The support ring (4) is processed from stainless steel and has an approximately L-shaped cross section for fixing the thrust ball bearing (5).

4. A transducer measuring mechanism according to claim 1, characterized in that: The positioning plate (7) is fixed to the worm gear (6) by screws. There are 2 threaded holes for fixing the positioning plate (7) on the worm gear (6) at the 0° and 180° directions respectively.

5. The transducer measuring mechanism according to claim 5, wherein: The upper end of the positioning plate (7) is in a pin shape, and there are positioning holes in the corresponding part of the transducer fixture (8). The two can achieve positioning in cooperation. The flange holes at the lower end of the transducer fixture (8) correspond to the flange holes of the transducer (16), and the two can be fixed by screws.

6. The transducer measuring mechanism according to claim 1, wherein: The inner diameters of the support ring (4), the thrust ball bearing (5) and the worm gear (6) are all greater than 600 mm, which facilitates the large-sized transducer to pass through the middle of the support ring (4), the thrust ball bearing (5) and the worm gear (6), thus facilitating the installation of the large-sized transducer.

7. The transducer measuring mechanism according to claim 1, characterized in that: The number of the fixing blocks (9) and the bearing blocks (10) is 2 each. The 2 fixing blocks (9) are respectively fixed to both ends of the cross beam (3). The 2 bearing blocks (10) are respectively fixed to the 2 fixing blocks (9). Both ends of the worm (11) are respectively fixed to the 2 bearing blocks (10) and mesh with the worm gear (6).

8. The transducer measuring mechanism according to claim 1, characterized in that: The stepping motor (12) drives the worm (11) to rotate through a speed reducer. The worm (11) meshes with the worm gear (6) to drive the worm gear (6) to rotate, and drives the transducer fixed on the worm gear (6) to rotate. The handwheel (15) can perform fine adjustment of the rotation angle. After the angle of the transducer (16) rotates to the specified position, the worm gear (6) and the worm (11) can achieve self-locking, and then the acoustic parameters of the transducer can be measured.

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