Intelligent rotary table for acoustic testing

Abstract

The utility model discloses an intelligent rotary table for acoustic testing, which comprises a lower support, a sliding table is arranged on the lower support, a rotary table base is arranged in the sliding table through a lead screw, a rotary table body is rotatably arranged at the upper part in the rotary table base through a second rotating shaft, and the outer side of a first rotating shaft is in transmission connection with a first motor through a first gear set. The rotary table base is arranged on the upper portion of the sliding table in a sliding mode through the lead screw, the two ends of the sliding table are fixedly installed on the detection table through the first rotating shaft and the lower support, and therefore the lead screw can drive the rotary table body on the upper portion of the rotary table base to move linearly to be adjusted. And one end of the second rotating shaft is in transmission connection with a second motor through a second gear set, so that the second motor and the second gear set drive the second rotating shaft to rotate and adjust, and the rotary table body can be horizontally rotated, adjusted and used, thereby meeting acoustic test use treatment at different straight lines and horizontal positions, and being high in test efficiency and convenient and fast to operate and control.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustic testing equipment, in particular to an intelligent turntable for acoustic testing. Background Art

[0002] Acoustic testing is the science of acoustic measurement techniques, including measurement methods and instruments. Basic acoustic measurements include sound pressure measurement, sound intensity measurement, sound particle velocity measurement, wavelength measurement, acceleration measurement, absolute calibration of microphones and hydrophones, communication system testing, speech intelligibility testing, audiometry, sound wave analysis, electroacoustic instrument performance evaluation, and room acoustic quality measurement. Modern acoustic measurement instruments include various capacitive sensors and electronic amplification recording devices, analog and digital spectrum analyzers, sound intensity meters, accelerometers, standing wave tubes, as well as anechoic chambers, reverberation chambers, soundproof chambers, high-intensity sound testing laboratories, anechoic tanks, and reverberation tanks. Acoustic testing requires the use of a turntable to achieve multiple horizontal angles.

[0003] The prior art test turntable, application number 201920960596.8, includes a turntable body with push-pull handles A and B, and a rotating shaft connected to a lower fixed plate, an upper fixed plate, and a fixing nut. However, the turntable is difficult to adjust for axial rotation and linear movement, resulting in low adjustment accuracy, making it difficult to meet the requirements for acoustic testing at different longitudinal angles and linear positions, resulting in low testing efficiency. Summary of the Invention

[0004] The purpose of the present utility model is to provide an intelligent turntable for acoustic testing, so as to solve the problem in the prior art that it is inconvenient to use and process the axial rotation adjustment and linear movement adjustment of the turntable, the adjustment accuracy is low, and it is difficult to meet the acoustic testing requirements of different longitudinal angles and linear positions, resulting in low test efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intelligent turntable for acoustic testing, comprising a lower bracket, a slide is provided on one side of the upper end of the lower bracket via a first rotating shaft, a turntable base is provided inside the slide via a screw, a turntable body is provided on the upper part of the turntable base via a second rotating shaft, a first motor is connected to the outer side of the first rotating shaft via a first gear set, and a second motor is connected to one end of the second rotating shaft via a second gear set, and a locking mechanism is provided between the first gear set and the lower bracket.

[0006] Furthermore, the screw includes a screw rod rotatably arranged in the upper groove of the slide, the outer thread of the screw rod is provided with a slider, and the lower end of the turntable base is fixedly connected to the upper part of the slider, and one end of the screw rod is connected to the third motor through a belt flywheel group.

[0007] Furthermore, the inner wall of the groove is provided with a limiting convex rib, and the middle parts of both sides of the sliding block are slidably arranged through the limiting sliding groove and the limiting convex rib.

[0008] Furthermore, the first gear set adopts a reduction gear, and one end of the first motor is fixedly arranged on one side of the lower bracket through a machine base.

[0009] Furthermore, the second motor is fixedly arranged in a cavity inside the turntable base through a base, and a heat dissipation hole is provided at the lower part of the cavity.

[0010] Furthermore, the lower bracket is configured as an L-shaped bracket, and a positioning hole is provided at the lower end of the lower bracket.

[0011] Furthermore, the locking mechanism includes a locking tooth groove arranged on the outside of the driven gear of the first gear set, and a locking tooth block is provided on one side of the lower bracket through the cylinder, and the locking tooth block is meshed and connected with the locking tooth groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model sets a turntable base on the upper part of the slide through a lead screw, and the two ends of the slide are fixed on the detection platform through the first rotating shaft and the lower bracket, so that the turntable body on the upper part of the turntable base can be driven by the lead screw to move linearly and adjust the movement, and one end of the second rotating shaft is connected to the second motor through the second gear set, so that the second rotating shaft is driven by the second motor and the second gear set to rotate and adjust the turntable body, so that the horizontal rotation adjustment of the turntable body can be performed, and the adjustment accuracy is high, thereby meeting the acoustic test requirements of different linear and horizontal positions, with high test efficiency and convenient and quick operation.

[0014] The utility model also has a slide on one side of the upper end of the lower bracket that is rotatable through the first rotating shaft, and the outer side of the first rotating shaft is connected to the first motor through the first gear set, so that the first rotating shaft can be driven to rotate and adjust through the first motor and the first gear set, and the axial rotation of the turntable body can be adjusted, thereby meeting the needs of acoustic testing at different longitudinal angles.

[0015] The utility model provides a locking mechanism between the first gear group and the lower bracket, the locking mechanism includes a locking tooth groove arranged on the outside of the driven gear of the first gear group, a locking tooth block provided on one side of the lower bracket through a cylinder, and the locking tooth block and the locking tooth groove are meshed and connected, so that the locking tooth block is driven by the cylinder to move and adjust, and meshes with the locking tooth groove on the outside of the driven gear of the first gear group, so as to lock the first rotating shaft for rotation adjustment, thereby improving the stability of the axial rotation adjustment of the turntable body.

[0016] The utility model is configured as an L-shaped bracket through the lower bracket, and a positioning hole is opened at the lower end of the lower bracket, so that the lower sides of both ends of the slide are easily stably supported and installed and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a top view of the overall structure of the utility model;

[0020] Figure 3 This is a front view of the internal structure of the turntable base of the utility model.

[0021] In the figure: 1. slide; 2. lower bracket; 3. first rotating shaft; 4. first gear set; 5. first motor; 6. groove; 7. screw; 8. third motor; 9. slider; 10. turntable base; 11. turntable body; 12. positioning hole; 13. limiting rib; 14. second rotating shaft; 15. second gear set; 16. second motor; 17. heat dissipation hole; 18. belt flywheel set; 19. cylinder; 20. locking gear block; 21. locking tooth groove; 22. limiting slide. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 , Figure 2 , Figure 3In an embodiment of the present invention, an intelligent turntable for acoustic testing includes a lower bracket 2, a slide 1 is provided on one side of the upper end of the lower bracket 2 through a first rotating shaft 3, a turntable base 10 is provided inside the slide 1 through a lead screw, so that the turntable body 11 on the upper part of the turntable base 10 can be driven by the lead screw to move linearly and adjust the turntable body 11 to meet the acoustic test use requirements of different linear positions, and a turntable body 11 is provided on the upper part of the turntable base 10 through a second rotating shaft 14, and a first motor 5 is connected to the outer side of the first rotating shaft 3 through a first gear set 4, so that the first rotating shaft 3 can be driven to rotate by the first motor 5 and the first gear set 4. Adjustment, can handle the axial rotation adjustment of the turntable body 11, so as to meet the needs of acoustic testing at different longitudinal angles. One end of the second shaft 14 is connected to the second motor 16 through the second gear set 15, so that the second shaft 14 is driven by the second motor 16 and the second gear set 15 to rotate and adjust, and can handle the horizontal rotation adjustment of the turntable body 11, so as to meet the needs of acoustic testing at different horizontal positions. The test efficiency is high and the operation is convenient and quick. A locking mechanism is provided between the first gear set 4 and the lower bracket 2, so that the first shaft 3 of the rotation adjustment can be locked, so as to improve the stability of the axial rotation adjustment of the turntable body 11.

[0024] Preferably, the screw includes a screw rod 7 rotatably arranged in the groove 6 on the upper side of the slide 1, a slider 9 is provided on the outer side of the screw rod 7, and the lower end of the turntable base 10 is fixedly connected to the upper part of the slider 9, and one end of the screw rod 7 is connected to the third motor 8 through a belt flywheel group 18, so that the screw rod 7 is driven by the third motor 8 to rotate forward and reverse, and the turntable base 10 can be adjusted and used for linear movement.

[0025] Preferably, a limiting rib 13 is provided on the inner wall of the groove 6, and the middle part of both sides of the slider 9 is slidably arranged through a limiting slide groove 22 and the limiting rib 13, so that the slider 9 can be slidably guided when moving and adjusting, which is beneficial to improving the stability of the linear movement adjustment of the turntable base 10.

[0026] Preferably, the first gear set 4 adopts a reduction gear, one end of the first motor 5 is fixedly set on one side of the lower bracket 2 through the machine base, the second motor 16 is fixedly set in the cavity inside the turntable machine base 10 through the machine base, and a heat dissipation hole 17 is provided at the lower part of the cavity, and the first motor 5, the second motor 16 and the third motor 8 are all electrically connected to the PLC control cabinet to facilitate overall control.

[0027] Preferably, the lower bracket 2 is configured as an L-shaped bracket, and a positioning hole 12 is opened at the lower end of the lower bracket 2 to facilitate stable support and installation and fixing of the lower sides of both ends of the slide 1.

[0028] Preferably, the locking mechanism includes a locking tooth groove 21 arranged on the outside of the driven gear of the first gear group 4, and a locking tooth block 20 is provided on one side of the lower bracket 2 through the cylinder 19, and the locking tooth block 20 and the locking tooth groove 21 are meshed and connected, so that the locking tooth block 20 is driven by the cylinder 19 to move and adjust, and meshes with the locking tooth groove 21 on the outside of the driven gear of the first gear group 4, so that the first rotating shaft 3 of the rotation adjustment can be locked, so as to improve the stability of the axial rotation adjustment of the turntable body 11.

[0029] The working principle and usage process of the present invention are as follows: when in use, the acoustic test equipment is fixed on the turntable body 11, the turntable base 10 is slidably set on the upper part of the slide 1 through a screw, and the two ends of the slide 1 are fixed to the acoustic detection platform through the first rotating shaft 3 and the lower bracket 2, so that the turntable body 11 on the upper part of the turntable base 10 can be driven by the screw to move linearly and adjust the processing, and the second rotating shaft 14 can be driven to rotate and adjust by the second motor 16 and the second gear set 15, so that the turntable body 11 can be horizontally rotated and adjusted for use, and the adjustment accuracy is high, thereby meeting the acoustic test use and processing of different linear and horizontal positions, the test efficiency is high, and the operation is convenient and fast.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An intelligent turntable for acoustic testing, comprising a lower bracket (2), characterized in that: A slide (1) is rotatably provided on one side of the upper end of the lower bracket (2) via a first rotating shaft (3); a turntable base (10) is provided inside the slide (1) via a lead screw; a turntable body (11) is rotatably provided on the upper inner portion of the turntable base (10) via a second rotating shaft (14); a first motor (5) is connected to the outer side of the first rotating shaft (3) via a first gear set (4); one end of the second rotating shaft (14) is connected to the second motor (16) via a second gear set (15); and a locking mechanism is provided between the first gear set (4) and the lower bracket (2).

2. The intelligent turntable for acoustic testing according to claim 1, characterized in that: The screw comprises a screw rod (7) rotatably arranged in a groove (6) on the upper side of the slide (1); a slider (9) is provided on the outer side of the screw rod (7) through a thread; the lower end of the turntable base (10) is fixedly connected to the upper part of the slider (9); one end of the screw rod (7) is connected to a third motor (8) through a belt flywheel assembly (18).

3. The intelligent turntable for acoustic testing according to claim 2, characterized in that: The inner wall of the groove (6) is provided with a limiting convex rib (13), and the middle parts of both sides of the slider (9) are slidably arranged through the limiting sliding groove (22) and the limiting convex rib (13).

4. The intelligent turntable for acoustic testing according to claim 1, characterized in that: The first gear set (4) uses a reduction gear, and one end of the first motor (5) is fixedly arranged on one side of the lower bracket (2) through a machine base.

5. The intelligent turntable for acoustic testing according to claim 1, characterized in that: The second motor (16) is fixedly arranged in a cavity inside the turntable base (10) through a base, and a heat dissipation hole (17) is provided at the bottom of the cavity.

6. The intelligent turntable for acoustic testing according to claim 1, characterized in that: The lower bracket (2) is configured as an L-shaped bracket, and a positioning hole (12) is provided at the lower end of the lower bracket (2).

7. The intelligent turntable for acoustic testing according to claim 1, characterized in that: The locking mechanism comprises a locking tooth groove (21) arranged on the outside of the driven gear of the first gear set (4); a locking tooth block (20) is provided on one side of the lower bracket (2) via the cylinder (19); and the locking tooth block (20) and the locking tooth groove (21) are meshed and connected.

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