Vibration noise test equipment high-integration mobile platform suitable for bench test

Abstract

The invention discloses a vibration noise testing equipment high-integration mobile platform suitable for a bench test, and relates to the technical field of bench test vibration noise testing. The invention aims to solve the problems that vibration noise testing equipment in the existing bench test is large in size and inconvenient to move, the number of cables is large, and the cables are easy to intertwine with one another. The system comprises a plurality of splicing type platforms arranged in parallel, every two adjacent splicing type platforms are detachably connected, each splicing type platform comprises a power module distribution box, a socket assembly, a mobile platform, a platform baffle, a pull rod, a test device, four universal wheels and a plurality of combined type semi-automatic cable winding and unwinding mechanisms, the mobile platform is horizontally arranged, and the socket assembly is detachably connected with the platform baffle. The power module distribution box is arranged on the outer side face of the platform baffle, the testing device is electrically connected with the power module distribution box through the socket assembly, and every two adjacent combined type semi-automatic cable winding and unwinding mechanisms are detachably connected. The device is used for the vibration noise test of the bench test.

Description

Technical Field

[0001] The present invention relates to the technical field of bench test vibration and noise testing, and in particular to a highly integrated mobile platform for vibration and noise testing equipment suitable for bench tests. Background Art

[0002] For example, electromechanical equipment such as marine steam turbine generator sets need to undergo bench testing before being installed on actual ships. Due to various factors such as the complex environment of the bench test site, the large number of measurement points, the redundant low-noise cables, and the long test cycle, the difficulty and working time of vibration and noise testing are greatly increased.

[0003] Before onboard testing of electromechanical equipment, bench testing is first conducted to verify that vibration and noise levels meet pre-delivery specifications. As one of the most important technical indicators, vibration and noise testing is performed throughout all stages of the testing cycle.

[0004] Before the test begins, test equipment such as vibration accelerometers and microphones, low-noise cables, charge amplifiers, power amplifiers, data acquisition devices, and test data acquisition and storage devices must be connected sequentially. The number of vibration accelerometers and microphones deployed at the assessment and reference measurement points can reach over 40, resulting in redundant, complex, and intertwined cables. Due to the long test time span, construction and renovations are carried out simultaneously at the test site as the test progresses. The complexity of on-site wiring can affect the construction schedule. Therefore, all test equipment must be collected after the test to avoid damage. However, each measurement point layout and equipment connection takes a long time, reducing test efficiency. The test equipment is numerous and heavy, making it difficult to transfer without automated handling tools. Due to the large number of accelerometers and microphones deployed, cables easily become tangled, making it difficult to untangle the cables. This complicates determining the correspondence between the measurement points and the data acquisition device interfaces, significantly increasing the workload for connecting vibration measurement equipment. Summary of the Invention

[0005] To address the issues of large, inconvenient vibration and noise test equipment in existing bench tests, as well as the large number of cables that are prone to entanglement, this invention proposes a highly integrated mobile platform for vibration and noise test equipment suitable for bench testing. All vibration and noise test equipment is integrated into a single test platform, powered by a unified external power supply. Individual low-noise cables are individually mounted within a modular semi-automatic cable retraction mechanism, enabling free control over the retraction and extension of the low-noise cables. This allows for simultaneous testing of multiple measurement points, orderly arrangement of test equipment, and centralization of cables within a retraction system unit. This makes the layout of each test equipment compact, convenient, and flexible, making it easy to use and move. This creates a clean test environment, shortens the time required to rearrange measurement points, and improves test efficiency.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing includes several spliced ​​platforms arranged in parallel, and each adjacent two spliced ​​platforms are detachably connected. Each spliced ​​platform includes a power module distribution box, a socket assembly, a mobile platform, a platform baffle, a pull rod, a test device, four universal wheels and a plurality of combined semi-automatic cable retraction mechanisms. The mobile platform is arranged horizontally, and the four universal wheels are evenly and symmetrically arranged on the lower end face of the mobile platform. The platform baffle is vertically fixed to one side of the upper end face of the mobile platform, the socket assembly is arranged on the inner side face of the platform baffle, the power module distribution box is arranged on the outer side face of the platform baffle, and the test device is arranged on the upper end face of the mobile platform. The test device is electrically connected to the power module distribution box through the socket assembly, the pull rod is arranged at the upper end of the power module distribution box, and the plurality of combined semi-automatic cable retraction mechanisms are arranged in parallel on the other side of the upper end face of the mobile platform, and each adjacent two of the plurality of combined semi-automatic cable retraction mechanisms are detachably connected.

[0008] Furthermore, the mobile platform is in the shape of a rectangular plate, and the mobile platforms of two adjacent spliced ​​platforms are plug-in connected.

[0009] Furthermore, a platform slide is provided on one end face of the mobile platform along the length direction, and a platform slide rail is provided on the other end face of the mobile platform along the length direction. In each adjacent two spliced ​​platforms, the platform slide rail of one mobile platform is inserted into the platform slide of the adjacent mobile platform.

[0010] Furthermore, the combined semi-automatic cable retracting and releasing mechanism has a rectangular parallelepiped shape, and two adjacent combined semi-automatic cable retracting and releasing mechanisms are plug-in connected.

[0011] Furthermore, a group of vertical slides is provided on the vertical end face of one side of the combined semi-automatic cable retracting mechanism in the height direction, and a group of vertical slide rails is provided on the vertical end face of the other side of the combined semi-automatic cable retracting mechanism in the height direction. In the horizontal direction, the vertical slide rails of one combined semi-automatic cable retracting mechanism are inserted into the vertical slide of the adjacent combined semi-automatic cable retracting mechanism; a group of transverse slides is provided on the upper end face of the combined semi-automatic cable retracting mechanism in the length direction, and a group of transverse slide rails is provided on the lower end face of the combined semi-automatic cable retracting mechanism in the length direction. In the height direction, the transverse slide rails of one combined semi-automatic cable retracting mechanism are inserted into the transverse slide of the adjacent combined semi-automatic cable retracting mechanism.

[0012] Furthermore, the combined semi-automatic cable retracting and releasing mechanism includes an outer shell, a cable reel, a rotating shaft, a winding drive mechanism, a winding control switch and a group of multi-specification low-noise cable interfaces. A through hole is opened in the middle of the front end face of the outer shell, the rotating shaft is horizontally arranged in the outer shell and is rotatably connected to the outer shell, the cable reel set is fixed to the middle of the rotating shaft, the winding drive mechanism is connected to the rotating shaft and drives the rotating shaft to rotate, the winding control switch and a group of multi-specification low-noise cable interfaces are respectively arranged on the rear end face of the outer shell, and the winding control switch is electrically connected to the winding drive mechanism.

[0013] Furthermore, the test equipment includes a low-noise cable, a charge amplifier, a data acquisition instrument, a power amplifier and a test data storage system.

[0014] Furthermore, the low-noise cable is arranged in the outer shell of the combined semi-automatic cable retracting and releasing mechanism, one end of the low-noise cable passes through the through hole of the outer shell and is connected to the vibration accelerometer or microphone, and the other end of the low-noise cable is connected to the external signal transmission cable through a set of multi-specification low-noise cable interfaces, and the middle part of the low-noise cable is wound on the cable reel.

[0015] Furthermore, the pull rod is a telescopic pull rod.

[0016] Furthermore, a box door is provided on the end surface of the power module distribution box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention is suitable for a highly integrated mobile platform for vibration and noise test equipment used in bench tests. The purpose is to address the current problems in bench tests, such as the large size and inconvenience of movement of vibration and noise test equipment, the large number of cables, and the tendency for them to become entangled. For the first time, all test equipment is integrated onto the same mobile platform, and a combined semi-automatic cable retraction system effectively controls the retraction and extension of low-noise cables. During the test, on-site cables are neatly arranged and avoid entanglement. Both the mobile platform and the combined semi-automatic cable retraction mechanism utilize slide rails for free assembly and disassembly, preventing the combined semi-automatic cable retraction mechanism from moving at will. This improves the overall stability of the structure, shortens the time required to arrange vibration and noise test equipment, reduces the chaos caused by cable entanglement, and reduces the space occupied by vibration and noise test equipment. This provides technical support for the high integration of vibration and noise test equipment and the orderly conduct of vibration and noise tests.

[0019] The present invention has made a lot of structural innovations, which greatly reduces the difficulty and workload caused by the large number of cables and their easy entanglement during the test process, reduces the test platform space occupied by the test equipment, and effectively ensures the rapid and orderly progress of bench test vibration and noise testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the rear side of the overall structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the front structure of the combined semi-automatic cable retracting and releasing mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the rear structure of the combined semi-automatic cable retracting and releasing mechanism of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the combined semi-automatic cable retracting and releasing mechanism of the present invention. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] Specific implementation method 1: Combination Figures 1 to 5 Describe this embodiment. The highly integrated mobile platform of vibration and noise testing equipment suitable for bench testing described in this embodiment includes several splicing platforms arranged in parallel, and each adjacent two splicing platforms are detachably connected. Each splicing platform includes a power module distribution box 2, a socket assembly 3, a mobile platform 4, a platform baffle 6, a pull rod 7, a test device, four universal wheels 5 and a plurality of combined semi-automatic cable retraction mechanisms 1. The mobile platform 4 is arranged horizontally, and the four universal wheels 5 are evenly and symmetrically arranged on the lower end surface of the mobile platform 4. The platform baffle 6 is vertically fixed to one side of the upper end surface of the mobile platform 4. The socket assembly 3 is arranged on the inner side of the platform baffle 6, the power module distribution box 2 is arranged on the outer side of the platform baffle 6, and the test device is arranged on the upper end surface of the mobile platform 4. The test device is electrically connected to the power module distribution box 2 through the socket assembly 3. The pull rod 7 is arranged at the upper end of the power module distribution box 2. Multiple combined semi-automatic cable retraction mechanisms 1 are arranged in parallel on the other side of the upper end surface of the mobile platform 4, and each adjacent two multiple combined semi-automatic cable retraction mechanisms 1 are detachably connected.

[0027] Specific implementation method 2: Combination Figures 1 to 5 To illustrate this embodiment, the mobile platform 4 of this embodiment is in the shape of a rectangular plate, and the mobile platforms 4 of two adjacent splicing platforms are plug-in connected.

[0028] The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0029] Specific implementation method three: Combination Figures 1 to 5 To illustrate this embodiment, a platform slide 15 is provided on one end face of the mobile platform 4 along the length direction, and a platform slide rail 16 is provided on the other end face of the mobile platform 4 along the length direction. In each adjacent two spliced ​​platforms, the platform slide rail 16 of one mobile platform 4 is inserted into the platform slide 15 of the adjacent mobile platform 4.

[0030] The undisclosed technical features in this embodiment are the same as those in the second embodiment.

[0031] Specific implementation method four: Combination Figures 1 to 5 To describe this embodiment, the combined semi-automatic cable retracting mechanism 1 of this embodiment has a rectangular parallelepiped shape, and two adjacent combined semi-automatic cable retracting mechanisms 1 are plug-connected.

[0032] The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0033] Specific implementation method five: Combination Figures 1 to 5 To describe this embodiment, a group of vertical slides 10 are provided on the vertical end face of one side of the combined semi-automatic cable retracting mechanism 1 in the height direction, and a group of vertical slide rails 17 are provided on the vertical end face of the other side of the combined semi-automatic cable retracting mechanism 1 in the height direction. In the horizontal direction, for every two adjacent combined semi-automatic cable retracting mechanisms 1, the vertical slide rail 17 of one combined semi-automatic cable retracting mechanism 1 is inserted into the vertical slide 10 of the adjacent combined semi-automatic cable retracting mechanism 1; a group of transverse slides 9 are provided on the upper end face of the combined semi-automatic cable retracting mechanism 1 in the length direction, and a group of transverse slide rails 18 are provided on the lower end face of the combined semi-automatic cable retracting mechanism 1 in the length direction. In the height direction, for every two adjacent combined semi-automatic cable retracting mechanisms 1, the transverse slide rail 18 of one combined semi-automatic cable retracting mechanism 1 is inserted into the transverse slide 9 of the adjacent combined semi-automatic cable retracting mechanism 1.

[0034] The undisclosed technical features in this embodiment are the same as those in the fourth embodiment.

[0035] Specific implementation method six: combination Figures 1 to 5To describe this embodiment, the combined semi-automatic cable retracting and releasing mechanism 1 described in this embodiment includes an outer shell 19, a cable reel 14, a rotating shaft 20, a winding drive mechanism, a winding control switch 12 and a group of multi-specification low-noise cable interfaces 13. A through hole 21 is opened in the middle of the front end face of the outer shell 9, the rotating shaft 20 is horizontally arranged in the outer shell 19 and is rotatably connected to the outer shell 19, the cable reel 14 is fixedly mounted in the middle of the rotating shaft 20, the winding drive mechanism is connected to the rotating shaft 20 and drives the rotating shaft 20 to rotate, the winding control switch 12 and a group of multi-specification low-noise cable interfaces 13 are respectively arranged on the rear end face of the outer shell 19, and the winding control switch 12 is electrically connected to the winding drive mechanism.

[0036] The undisclosed technical features in this embodiment are the same as those in the fifth embodiment.

[0037] Specific implementation method seven: combination Figures 1 to 5 This embodiment is described. The test equipment in this embodiment includes a low-noise cable, a charge amplifier, a data acquisition instrument, a power amplifier, and a test data storage system.

[0038] The undisclosed technical features in this embodiment are the same as those in the sixth embodiment.

[0039] Specific implementation method eight: combination Figures 1 to 5 To describe this embodiment, the low-noise cable described in this embodiment is arranged in the outer shell 19 of the combined semi-automatic cable retracting and releasing mechanism 1, one end of the low-noise cable passes through the through hole 21 of the outer shell 19 and is connected to the vibration accelerometer or the microphone, and the other end of the low-noise cable is connected to the external signal transmission cable through a set of multi-specification low-noise cable interfaces 13, and the middle part of the low-noise cable is wound on the cable reel 14.

[0040] The undisclosed technical features in this embodiment are the same as those in the seventh embodiment.

[0041] When winding, first reserve a certain length of the other end of the low-noise cable and temporarily fix it on one side of the cable drum 14, then turn on the winding control switch 12, and the winding drive mechanism drives the cable drum 14 to rotate to wind the low-noise cable. After the winding is completed, remove the other end of the low-noise cable and connect it to the matching interface in the multi-specification low-noise cable interface 13.

[0042] Specific implementation method nine: Combination Figures 1 to 5 To describe this embodiment, the pull rod 7 in this embodiment is a telescopic pull rod.

[0043] The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0044] Specific implementation method ten: Combination Figures 1 to 5To illustrate this embodiment, a box door 8 is provided on the end surface of the power module distribution box 2 in this embodiment.

[0045] The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0046] How it works

[0047] The number of combined semi-automatic cable retracting and releasing mechanisms 1 is determined according to the number of measuring points required by the test. A multi-specification low-noise cable interface 13 is provided on the combined semi-automatic cable retracting and releasing mechanism 1. The winding control switch 12 issues instructions for reeling in and releasing the low-noise cable, making it more convenient to organize the low-noise cables, reducing the cable management process and improving the wiring and cable management efficiency.

[0048] The combined semi-automatic cable retracting mechanism 1 is assembled and placed on the mobile platform 4 through the slide rail assembly. The number of combined semi-automatic cable retracting mechanisms 1 can be precisely controlled, the wiring of low-noise cables is clearer and more convenient, and the overall structure of the combined semi-automatic cable retracting mechanism 1 is more stable.

[0049] All vibration and noise test equipment required for the test are integrated into the same mobile platform. The platform can be flexibly moved without changing the original layout of the test equipment. All vibration and noise test equipment can be moved as a whole or arranged discretely as needed, making it more convenient to use.

[0050] The mobile platform 4 is provided with a slide rail assembly, which can be assembled and disassembled to achieve smooth passage in a narrow space, and can work normally after being reassembled in the working area;

[0051] A power module distribution box 2 is provided on one side of the mobile platform 4, and external wires are connected to the socket assembly 3 to power the vibration and noise test equipment, integrating multiple functions into the same platform, improving the integration of the test equipment, and reducing the number of exposed cables.

[0052] Specifically, a single low-noise cable is installed in a combined semi-automatic cable retracting mechanism 1. One end of the cable is connected to the vibration accelerometer / microphone through the through hole 21 of the combined semi-automatic cable retracting mechanism 1, and the other end is connected to the external signal transmission cable at the corresponding multi-specification low-noise cable interface 13. Each combined semi-automatic cable retracting mechanism 1 is connected by a vertical slide rail 17, a vertical slideway 10 and a transverse slide rail 18, a transverse slideway 9, and is ultimately limited to 4 mobile platforms. The multi-specification low-noise cable interface 13 can connect the cables according to the cable model specifications, and the cable extension length can be adjusted by the winding control switch 12, effectively avoiding the mutual entanglement caused by multiple cables working, greatly reducing the workload of preparing for the connection of the vibration measuring equipment before the test and the finishing work after the test. The platform slide rails 16 and the platform slideway 15 of the mobile platform 4 are spliced ​​and assembled, and a universal wheel 5 is provided at the bottom. The mobile platform 4 can be flexibly moved in a narrow space by dragging the telescopic pull rod 7; all test equipment such as low-noise cables, charge amplifiers, data acquisition instruments, power amplifiers, test data storage systems, etc. are highly integrated on the mobile platform 4, and the power supply is centralized through the power module distribution box 2, which reduces the space occupied by the platform, and the test equipment is compactly arranged and easy to use.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing, characterized by: The invention comprises a plurality of spliced ​​platforms arranged in parallel, each two adjacent spliced ​​platforms are detachably connected, each spliced ​​platform comprises a power module distribution box (2), a socket assembly (3), a mobile platform (4), a platform baffle (6), a pull rod (7), a test device, four universal wheels (5) and a plurality of combined semi-automatic cable retracting and releasing mechanisms (1), the mobile platform (4) is arranged horizontally, the four universal wheels (5) are evenly and symmetrically arranged on the lower end surface of the mobile platform (4), the platform baffle (6) is vertically fixed to one side of the upper end surface of the mobile platform (4), The socket assembly (3) is arranged on the inner side of the platform baffle (6), the power module distribution box (2) is arranged on the outer side of the platform baffle (6), the test equipment is arranged on the upper end surface of the mobile platform (4), the test equipment is electrically connected to the power module distribution box (2) through the socket assembly (3), the pull rod (7) is arranged at the upper end of the power module distribution box (2), and a plurality of combined semi-automatic cable retracting mechanisms (1) are arranged in parallel on the other side of the upper end surface of the mobile platform (4), and each adjacent two of the plurality of combined semi-automatic cable retracting mechanisms (1) are detachably connected.

2. A highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing according to claim 1, characterized in that: The mobile platform (4) is in the shape of a rectangular plate, and the mobile platforms (4) of two adjacent spliced ​​platforms are plug-in connected.

3. A highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing according to claim 2, characterized in that: A platform slideway (15) is provided on one end surface of the mobile platform (4) along the length direction, and a platform slide rail (16) is provided on the other end surface of the mobile platform (4) along the length direction. In each of two adjacent spliced ​​platforms, the platform slide rail (16) of one mobile platform (4) is inserted into the platform slideway (15) of the adjacent mobile platform (4).

4. According to claim 1, a highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing, characterized in that: The combined semi-automatic cable retracting and releasing mechanism (1) has a rectangular parallelepiped shape, and two adjacent combined semi-automatic cable retracting and releasing mechanisms (1) are plug-in connected.

5. A highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing according to claim 4, characterized in that: A group of vertical slideways (10) is provided on a vertical end surface of one side of the combined semi-automatic cable retracting mechanism (1) along the height direction, and a group of vertical slide rails (17) is provided on a vertical end surface of the other side of the combined semi-automatic cable retracting mechanism (1) along the height direction. In the horizontal direction, the vertical slide rail (17) of one combined semi-automatic cable retracting mechanism (1) is inserted into the vertical slideway (10) of the adjacent combined semi-automatic cable retracting mechanism (1); a group of transverse slideways (9) is provided on the upper end surface of the combined semi-automatic cable retracting mechanism (1) along the length direction, and a group of transverse slide rails (18) is provided on the lower end surface of the combined semi-automatic cable retracting mechanism (1) along the length direction. In the height direction, the transverse slide rail (18) of one combined semi-automatic cable retracting mechanism (1) is inserted into the transverse slideway (9) of the adjacent combined semi-automatic cable retracting mechanism (1).

6. A highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing according to claim 5, characterized in that: The combined semi-automatic cable retracting and releasing mechanism (1) comprises an outer shell (19), a cable drum (14), a rotating shaft (20), a winding driving mechanism, a winding control switch (12) and a group of multi-specification low-noise cable interfaces (13); a through hole (21) is provided in the middle of the front end surface of the outer shell (9); the rotating shaft (20) is horizontally arranged in the outer shell (19) and is rotatably connected to the outer shell (19); the cable drum (14) is sleeved and fixedly connected to the middle of the rotating shaft (20); the winding driving mechanism is connected to the rotating shaft (20) and drives the rotating shaft (20) to rotate; the winding control switch (12) and a group of multi-specification low-noise cable interfaces (13) are respectively arranged on the rear end surface of the outer shell (19); and the winding control switch (12) is electrically connected to the winding driving mechanism.

7. A highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing according to claim 6, characterized in that: The test equipment includes a low-noise cable, a charge amplifier, a data acquisition instrument, a power amplifier and a test data storage system.

8. A highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing according to claim 7, characterized in that: The low-noise cable is arranged in an outer shell (19) of the combined semi-automatic cable retracting and releasing mechanism (1); one end of the low-noise cable passes through a through hole (21) of the outer shell (19) to be connected to a vibration accelerometer or a microphone; the other end of the low-noise cable is connected to an external signal transmission cable via a group of multi-specification low-noise cable interfaces (13); and the middle portion of the low-noise cable is wound on a cable reel (14).

9. A highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing according to claim 1, characterized in that: The pull rod (7) is a telescopic pull rod.

10. The highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing according to claim 1, characterized in that: A box door (8) is provided on the end surface of the power module distribution box (2).

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