A vibration noise test equipment high integration mobile platform suitable for bench test

Abstract

The application relates to a high-integration mobile platform of a vibration noise testing device suitable for bench test, and relates to the technical field of vibration noise testing of bench test. The application is used for solving the problems of large size, inconvenience in moving, large number of cables and easy mutual winding of the vibration noise testing device in the existing bench test. The application comprises a plurality of spliced platforms arranged side by side, and each adjacent two spliced platforms are detachably connected. Each spliced platform comprises a power module distribution box, a socket assembly, a mobile platform, a platform baffle, a pull rod, a testing device, four universal wheels and a plurality of combined semi-automatic cable winding and unwinding mechanisms. The mobile platform is horizontally arranged, the power module distribution box is arranged on the outer side of the platform baffle, the testing device is electrically connected with the power module distribution box through the socket assembly, and each adjacent two plurality of combined semi-automatic cable winding and unwinding mechanisms are detachably connected. The application is used for vibration noise testing of bench test.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bench test vibration noise test, and particularly relates to a high-integration mobile platform of vibration noise test equipment suitable for bench test. BACKGROUND

[0002] Electromechanical equipment such as marine steam turbine generator set needs to be tested on a bench before being installed on a real ship. Due to various factors such as complex on-site environment of bench test, more test points, redundant low-noise cables, and long test period, the work difficulty and time of vibration noise test are greatly increased.

[0003] Before the real ship test of electromechanical equipment, bench test is first carried out to verify whether the vibration noise level meets the pre-delivery index requirements. As one of the most important technical indexes, vibration noise test is carried out throughout all stages of the test period.

[0004] Before the test starts, vibration accelerometers and microphones, low-noise cables, charge amplifiers, power amplifiers, data acquisition instruments, test data acquisition and storage equipment, and other test equipment need to be sequentially connected. The vibration accelerometers and microphones arranged at the test points and reference points can reach more than 40, and the cables are redundant, complex and intertwined. Due to the large test time span, construction and reconstruction are carried out on the test site at the same time, and the complexity of on-site wiring affects the construction progress. Therefore, after the test is completed, all test equipment needs to be collected to avoid damage to the test equipment. However, the time for each test point arrangement and equipment connection is long, which reduces the test efficiency. The test equipment is numerous and heavy, and it is difficult to move without automatic handling tools. Since many accelerometers and microphones are arranged, the cables are easily entangled with each other, which makes it difficult to untangle the cables and increases the difficulty of judging the correspondence between the test points and the data acquisition instrument interfaces, greatly increasing the workload of connecting the vibration test equipment. SUMMARY

[0005] In order to solve the problems of large size, inconvenient movement, and easy entanglement of cables of the vibration noise test equipment in the existing bench test, the present application provides a high-integration mobile platform of vibration noise test equipment suitable for bench test. All vibration noise test equipment is integrated on the same test platform, and is powered by a unified external power supply. A single low-noise cable is installed in a combined semi-automatic cable winding and unwinding mechanism to freely control the winding and unwinding of the low-noise cable. Not only can multiple test points be tested at the same time, but also the test equipment is arranged in order, the cables are concentrated in the winding and unwinding system unit, the test equipment is arranged in a centralized and compact manner, the use is convenient, the movement is flexible and light, the test environment is clean, the time for rearranging test points is shortened, and the test efficiency is improved.

[0006] The technical scheme adopted by the present application to solve the above technical problems is as follows:

[0007] The application discloses a high-integration mobile platform of a vibration noise testing device suitable for bench test, which comprises a plurality of spliced platforms arranged side by side and detachably connected between each two adjacent spliced platforms, each of the spliced platforms comprises a power module distribution box, a socket assembly, a mobile platform, a platform baffle, a pull rod, a testing device, four universal wheels and a plurality of combined semi-automatic cable winding and unwinding mechanisms, the mobile platform is horizontally arranged, the four universal wheels are symmetrically arranged on the lower end surface of the mobile platform, the platform baffle is vertically fixed on one side of the upper end surface of the mobile platform, the socket assembly is arranged on the inner side surface of the platform baffle, the power module distribution box is arranged on the outer side surface of the platform baffle, the testing device is arranged on the upper end surface of the mobile platform, the testing device is electrically connected with the power module distribution box through the socket assembly, the pull rod is arranged on the upper end of the power module distribution box, and the plurality of combined semi-automatic cable winding and unwinding mechanisms are arranged on the other side of the upper end surface of the mobile platform in parallel and detachably connected between each two adjacent combined semi-automatic cable winding and unwinding mechanisms.

[0008] Further, the mobile platform is in the shape of a rectangular plate, and the mobile platforms of the adjacent two spliced platforms are connected through insertion.

[0009] Further, a platform slide is arranged on one side end surface of the mobile platform along the length direction, a platform slide rail is arranged on the other side end surface of the mobile platform along the length direction, and the platform slide rail of one mobile platform is inserted into the platform slide of the adjacent mobile platform in each two adjacent spliced platforms.

[0010] Further, the combined semi-automatic cable winding and unwinding mechanism is in the shape of a cuboid, and the combined semi-automatic cable winding and unwinding mechanisms are connected through insertion between each two adjacent combined semi-automatic cable winding and unwinding mechanisms.

[0011] Further, a group of vertical slides are arranged on one side vertical end surface of the combined semi-automatic cable winding and unwinding mechanism along the height direction, a group of vertical slide rails are arranged on the other side vertical end surface of the combined semi-automatic cable winding and unwinding mechanism along the height direction, the vertical slide rail of one combined semi-automatic cable winding and unwinding mechanism is inserted into the vertical slide of the adjacent combined semi-automatic cable winding and unwinding mechanism in each two adjacent combined semi-automatic cable winding and unwinding mechanisms in the horizontal direction, a group of horizontal slides are arranged on the upper end surface of the combined semi-automatic cable winding and unwinding mechanism along the length direction, a group of horizontal slide rails are arranged on the lower end surface of the combined semi-automatic cable winding and unwinding mechanism along the length direction, and the horizontal slide rail of one combined semi-automatic cable winding and unwinding mechanism is inserted into the horizontal slide of the adjacent combined semi-automatic cable winding and unwinding mechanism in each two adjacent combined semi-automatic cable winding and unwinding mechanisms in the height direction.

[0012] Further, the combined semi-automatic cable winding and unwinding mechanism comprises a shell, a cable reel, a rotating shaft, a winding driving mechanism, a winding control switch and a plurality of low-noise cable interfaces, a through hole is formed in the middle of the front end face of the shell, the rotating shaft is horizontally arranged in the shell and rotationally connected with the shell, the cable reel is sleeved and fixedly connected to the middle of the rotating shaft, the winding driving mechanism is connected with the rotating shaft and drives the rotating shaft to rotate, the winding control switch and the plurality of low-noise cable interfaces are arranged on the rear end face of the shell respectively, and the winding control switch is electrically connected with the winding driving mechanism.

[0013] Further, the test device comprises a low-noise cable, a charge amplifier, a data acquisition instrument, a power amplifier and a test data storage system.

[0014] Further, the low-noise cable is arranged in the shell of the combined semi-automatic cable winding and unwinding mechanism, one end of the low-noise cable is connected with the vibration accelerometer or the microphone through the through hole of the shell, the other end of the low-noise cable is connected with the external signal transmission cable through the plurality of low-noise cable interfaces, and the middle part of the low-noise cable is wound on the cable reel.

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

[0016] Further, a door is formed in the end face of the power module distribution box.

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

[0018] The present application is suitable for a high-integration mobile platform of a vibration and noise test device for bench test, aims to solve the problems of large size, inconvenient movement, large number of cables and easy mutual winding of the vibration and noise test device in the current bench test, integrates all the test devices into the same mobile platform for the first time, effectively controls the winding degree of the low-noise cable through the combined semi-automatic cable winding and unwinding system, keeps the field cables neat during the test process, avoids the problem of mutual winding, and provides technical support for high integration of the vibration and noise test device and orderly vibration and noise test through the free assembly and disassembly of the mobile platform and the combined semi-automatic cable winding and unwinding mechanism, prevention of random movement of the combined semi-automatic cable winding and unwinding mechanism, improvement of the overall stability of the structure, shortening of the vibration and noise test device arrangement time, reduction of the chaos degree of mutual winding of the cables, and reduction of the space occupied by the vibration and noise test device.

[0019] The present application greatly reduces the working difficulty and workload caused by the large number of cables and easy mutual winding during the test process, reduces the test platform space occupied by the test device, and effectively ensures the rapid and orderly vibration and noise test of the bench test. BRIEF DESCRIPTION OF DRAWINGS

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

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

[0022] Figure 3 is a schematic diagram of the front side structure of the combined semi-automatic cable winding and unwinding mechanism in the present application;

[0023] Figure 4 is a schematic diagram of the rear side structure of the combined semi-automatic cable winding and unwinding mechanism in the present application;

[0024] Figure 5 is a schematic diagram of the internal structure of the combined semi-automatic cable winding and unwinding mechanism in the present application. DETAILED DESCRIPTION

[0025] In order to make the technical problems solved by the present application, technical solutions and beneficial effects more clear and explicit, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0026] Specific implementation method one: in combination with Figures 1 to 5 In this embodiment, the high-integration mobile platform of the vibration and noise test equipment suitable for bench test includes a plurality of spliced platforms arranged side by side, each adjacent two spliced platforms are detachably connected, each spliced 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 equipment, four universal wheels 5 and a plurality of combined semi-automatic cable winding and unwinding mechanisms 1, the mobile platform 4 is horizontally arranged, the four universal wheels 5 are symmetrically arranged on the lower end surface of the mobile platform 4, the platform baffle 6 is vertically and fixedly connected to one side of the upper end surface of the mobile platform 4, the socket assembly 3 is arranged on the inner side surface of the platform baffle 6, the power module distribution box 2 is arranged on the outer side surface 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 with the power module distribution box 2 through the socket assembly 3, the pull rod 7 is arranged on the upper end of the power module distribution box 2, and the plurality of combined semi-automatic cable winding and unwinding mechanisms 1 are arranged side by side on the other side of the upper end surface of the mobile platform 4. Each adjacent two plurality of combined semi-automatic cable winding and unwinding mechanisms 1 are detachably connected.

[0027] Specific implementation method two: in combination with Figures 1 to 5 In this embodiment, the shape of the mobile platform 4 is a rectangular plate, and the mobile platforms 4 of the adjacent two spliced platforms are connected by insertion.

[0028] The technical features not disclosed in this embodiment are the same as those in specific implementation method one.

[0029] Specific implementation three: combination Figures 1 to 5 In this embodiment, the mobile platform 4 is provided with a platform slide 15 on one side of the end surface in the length direction, and a platform slide rail 16 on the other side of the end surface in 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 technical features not disclosed in this embodiment are the same as those in specific implementation two.

[0031] Specific implementation four: combination Figures 1 to 5 In this embodiment, the combined semi-automatic cable winding and unwinding mechanism 1 is in the shape of a cuboid, and adjacent two combined semi-automatic cable winding and unwinding mechanisms 1 are connected by insertion.

[0032] The technical features not disclosed in this embodiment are the same as those in specific implementation one.

[0033] Specific implementation five: combination Figures 1 to 5 In this embodiment, the combined semi-automatic cable winding and unwinding mechanism 1 is in the shape of a cuboid, and adjacent two combined semi-automatic cable winding and unwinding mechanisms 1 are connected by insertion.

[0034] The technical features not disclosed in this embodiment are the same as those in specific implementation four.

[0035] Specific implementation six: combination Figures 1 to 5The embodiment is described as follows. The combined semi-automatic cable winding and unwinding mechanism 1 comprises a shell 19, a cable reel 14, a rotating shaft 20, a winding driving mechanism, a winding control switch 12 and a plurality of multi-specification low-noise cable interfaces 13. A through hole 21 is formed in the middle of the front end surface of the shell 19. The rotating shaft 20 is horizontally arranged in the shell 19 and rotationally connected with the shell 19. The cable reel 14 is sleeved and fixed to the middle of the rotating shaft 20. The winding driving mechanism is connected with the rotating shaft 20 and drives the rotating shaft 20 to rotate. The winding control switch 12 and the plurality of multi-specification low-noise cable interfaces 13 are arranged on the rear end surface of the shell 19, respectively. The winding control switch 12 is electrically connected with the winding driving mechanism.

[0036] The technical features not disclosed in the embodiment are the same as those in Embodiment Five.

[0037] Embodiment Seven: Combination Figures 1 to 5 The embodiment is described as follows. The test equipment comprises a low-noise cable, a charge amplifier, a data acquisition instrument, a power amplifier and a test data storage system.

[0038] The technical features not disclosed in the embodiment are the same as those in Embodiment Six.

[0039] Embodiment Eight: Combination Figures 1 to 5 The embodiment is described as follows. The low-noise cable is arranged in the shell 19 of the combined semi-automatic cable winding and unwinding mechanism 1. One end of the low-noise cable is connected with a vibration accelerometer or a microphone through the through hole 21 of the shell 19. The other end of the low-noise cable is connected with an external signal transmission cable through the plurality of multi-specification low-noise cable interfaces 13. The middle part of the low-noise cable is wound on the cable reel 14.

[0040] The technical features not disclosed in the embodiment are the same as those in Embodiment Seven.

[0041] During winding, a certain length of the other end of the low-noise cable is reserved and temporarily fixed on one side of the cable reel 14. Then, the winding control switch 12 is turned on. The winding driving mechanism drives the cable reel 14 to rotate, so as to wind the low-noise cable. After winding is completed, the other end of the low-noise cable is removed and connected to the interface matched therewith in the multi-specification low-noise cable interface 13.

[0042] Embodiment Nine: Combination Figures 1 to 5 The embodiment is described as follows. The pull rod 7 is a telescopic pull rod.

[0043] The technical features not disclosed in the embodiment are the same as those in Embodiment One.

[0044] Embodiment Ten: Combination Figures 1 to 5To illustrate the present embodiment, the power module distribution box 2 of the present embodiment is provided with a box door 8 on the end face thereof.

[0045] The technical features not disclosed in the present embodiment are the same as those in the first embodiment.

[0046] Working principle

[0047] The number of combined semi-automatic cable winding and unwinding mechanisms 1 is determined according to the number of test points required, and a plurality of specifications of low-noise cable interfaces 13 are arranged on the combined semi-automatic cable winding and unwinding mechanisms 1. The low-noise cable winding and unwinding mechanisms 1 are connected to the low-noise cable winding and unwinding mechanisms 1 through winding control switches 12 to issue instructions for winding and unwinding the low-noise cable. The low-noise cable is more convenient to arrange, the process of arranging the cable is reduced, and the efficiency of wiring and cable arrangement is improved.

[0048] The combined semi-automatic cable winding and unwinding mechanisms 1 are assembled by sliding rail assemblies and placed on the mobile platform 4. The number of combined semi-automatic cable winding and unwinding mechanisms 1 is accurately controlled, the layout of the low-noise cable is more clear and convenient, and the overall structure of the combined semi-automatic cable winding and unwinding mechanisms 1 is more stable.

[0049] All vibration and noise test equipment required for the test is integrated on the same mobile platform. The platform can be moved flexibly, and all vibration and noise test equipment can be moved integrally without changing the original layout of the test equipment. The vibration and noise test equipment can also be arranged discretely according to requirements, and is more convenient to use.

[0050] The mobile platform 4 is provided with a sliding rail assembly, which can be combined and disassembled to smoothly pass through a relatively narrow space and work normally after being reassembled in the working area.

[0051] The mobile platform 4 is provided with a power module distribution box 2, and an external power cord is connected to the socket assembly 3 to supply power to the vibration and noise test equipment. The vibration and noise test equipment is integrated on the same platform, the integration degree of the test equipment is improved, and the number of exposed cables is reduced.

[0052] Specifically, a single low-noise cable is installed in each combined semi-automatic cable winding and unwinding 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 winding and unwinding mechanism 1, and the other end is connected to the external signal transmission cable through the multi-specification low-noise cable interface 13 corresponding to the specification. Each combined semi-automatic cable winding and unwinding mechanism 1 is connected through vertical sliding rails 17, vertical sliding rails 10 and horizontal sliding rails 18, horizontal sliding rails 9, and finally limited on the 4 moving platforms. The multi-specification low-noise cable interface 13 can connect the cable according to the model specification of the cable, adjust the extension length of the cable through the winding control switch 12, effectively avoid the mutual entanglement caused by multiple cable work, and greatly reduce the preparation of the connection of the pre-test vibration measurement equipment and the workload of the final arrangement after the test. The platform sliding rail 16 and the platform sliding rail 15 of the moving platform 4 are spliced and assembled, the bottom is provided with a universal wheel 5, and the moving platform 4 is dragged in a narrow space through the telescopic pull rod 7 to move flexibly; all test equipment such as low-noise cable, charge amplifier, data acquisition instrument, power amplifier and test data storage system is highly integrated on the moving platform 4, and power supply module distribution box 2 is used for centralized power supply, which reduces the occupied space of the platform, arranges the test equipment compactly, and uses conveniently.

[0053] The basic principles and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application 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 in that: The application relates to a mobile platform for testing electronic products, which comprises a plurality of spliced platforms arranged side by side, and 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 winding and unwinding mechanisms (1); the mobile platform (4) is horizontally arranged; the four universal wheels (5) are symmetrically arranged on the lower end surface of the mobile platform (4); the platform baffle (6) is vertically fixed on one side of the upper end surface of the mobile platform (4); the socket assembly (3) is arranged on the inner side surface of the platform baffle (6); the power module distribution box (2) is arranged on the outer side surface of the platform baffle (6); the test device is arranged on the upper end surface of the mobile platform (4); the test device is electrically connected with the power module distribution box (2) through the socket assembly (3); the pull rod (7) is arranged on the upper end of the power module distribution box (2); and the plurality of combined semi-automatic cable winding and unwinding mechanisms (1) are arranged side by side on the other side of the upper end surface of the mobile platform (4). The mobile platform (4) is in the shape of a rectangular plate, and the mobile platforms (4) of the adjacent two spliced platforms are connected through insertion. A platform slide rail (16) is arranged on the length direction of one side end surface of the mobile platform (4), and a platform slide (15) is arranged on the length direction of the other side end surface of the mobile platform (4); in each two adjacent 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). The combined semi-automatic cable winding and unwinding mechanism (1) is in the shape of a cuboid, and the adjacent two combined semi-automatic cable winding and unwinding mechanisms (1) are connected through insertion. A group of vertical slides (10) are arranged on the height direction of one vertical end surface of the combined semi-automatic cable winding and unwinding mechanism (1), and a group of vertical slide rails (17) are arranged on the height direction of the other vertical end surface of the combined semi-automatic cable winding and unwinding mechanism (1); in each two adjacent combined semi-automatic cable winding and unwinding mechanisms (1) in the horizontal direction, the vertical slide rail (17) of one combined semi-automatic cable winding and unwinding mechanism (1) is inserted into the vertical slide (10) of the adjacent combined semi-automatic cable winding and unwinding mechanism (1); a group of horizontal slides (9) are arranged on the length direction of the upper end surface of the combined semi-automatic cable winding and unwinding mechanism (1), and a group of horizontal slide rails (18) are arranged on the length direction of the lower end surface of the combined semi-automatic cable winding and unwinding mechanism (1); in each two adjacent combined semi-automatic cable winding and unwinding mechanisms (1) in the height direction, the horizontal slide rail (18) of one combined semi-automatic cable winding and unwinding mechanism (1) is inserted into the horizontal slide (9) of the adjacent combined semi-automatic cable winding and unwinding mechanism (1).

2. The high-integration mobile platform of the vibration noise test equipment suitable for bench test according to claim 1, characterized in that: The combined semi-automatic cable winding and unwinding mechanism (1) comprises an outer shell (19), a cable reel (14), a rotating shaft (20), a winding driving mechanism, a winding control switch (12) and a plurality of multi-specification low-noise cable interfaces (13), a through hole (21) is formed in the middle of the front end face of the outer shell (19), the rotating shaft (20) is horizontally arranged in the outer shell (19) and is rotatably connected with the outer shell (19), the cable reel (14) is sleeved and fixedly connected to the middle of the rotating shaft (20), the winding driving mechanism is connected with the rotating shaft (20) and drives the rotating shaft (20) to rotate, the winding control switch (12) and the plurality of multi-specification low-noise cable interfaces (13) are arranged on the rear end face of the outer shell (19) respectively, and the winding control switch (12) is electrically connected with the winding driving mechanism.

3. The high-integration mobile platform of the vibration noise test equipment suitable for bench test according to claim 2, characterized in that: The test device comprises a low-noise cable, a charge amplifier, a data acquisition instrument, a power amplifier and a test data storage system.

4. The highly integrated mobile platform for vibration and noise testing equipment suitable for bench testing according to claim 3, characterized in that: The low-noise cable is arranged in the outer shell (19) of the combined semi-automatic cable winding and unwinding mechanism (1), one end of the low-noise cable is connected with a vibration accelerometer or a microphone through the through hole (21) of the outer shell (19), the other end of the low-noise cable is connected with an external signal transmission cable through the plurality of multi-specification low-noise cable interfaces (13), and the middle of the low-noise cable is wound on the cable reel (14).

5. The highly integrated mobile platform for a vibration and noise test device used in a bench test of claim 1, wherein: The pull rod (7) is a telescopic pull rod.

6. The highly integrated mobile platform for a vibration and noise test device used in a bench test of claim 1, wherein: A box door (8) is formed in the end face of the power module distribution box (2).

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