Simulation generation device for transportation vibration of small fan

Abstract

A simulation generating device for transportation vibration of a small fan comprises a mounting bottom plate and a plurality of vibration racks arranged on the mounting bottom plate, an isolation rubber mat is arranged on the lower portion of the mounting bottom plate, the fan to be tested is fixed to the vibration racks, a vibration generator is arranged in each vibration rack, and the vibration generators are arranged on the vibration racks. The vibration generator comprises an upper computer and a driving controller which are embedded in an inner cavity of the vibration rack, the upper computer is used for generating a vibration signal and transmitting the vibration signal to the driving controller, and the driving controller is used for receiving the vibration signal of the upper computer and generating a vibration excitation source, so that the vibration rack generates vibration with set amplitude and set frequency; the device can rapidly realize the simulated transportation vibration test of the small fan, saves manpower, shortens the test time, and reduces the test cost. The device can adapt to various models; various scene applications are supported, and local fixed-frequency fixed-amplitude control or upper computer curve control can be realized; the influence of vibration on the fan in the transportation process is accelerated and simulated, and the actual scene in the fan transportation process is truly restored.

Description

Technical Field

[0001] The utility model relates to a simulation generating device for transport vibration of a small fan. Background Art

[0002] During transportation, the vibration caused by road bumps may have a certain impact on the fan, such as abnormal noise or bearing damage. The fan generally needs to be tested and analyzed for its vibration resistance before batch transportation. There are two main existing testing and analysis processes: one is to test the samples during the actual logistics transportation process. This method is limited by the long transportation cycle, the cumbersome intermediate turnover process, and consumes a lot of manpower and material resources, and cannot be used for verification in the improvement process; the other is to complete the verification in the vibration laboratory. This method involves high equipment costs and insufficient number of samples that can be tested at the same time. If multiple samples are required for evaluation, it cannot be completed quickly, and the cost is high. In view of this, it is necessary to develop a simulation device for small fan transportation vibration, which can reflect the actual working conditions, make an accurate assessment of the risk level, and keep the cost of testing within a controllable range. Summary of the invention

[0003] In view of the shortcomings existing in the above problems, the utility model provides a simulation generating device for transport vibration of a small fan.

[0004] To achieve the above-mentioned purpose, the utility model provides a simulation generating device for transport vibration of a small fan, comprising a mounting base plate, a plurality of vibration tables arranged on the mounting base plate, an isolation rubber pad is provided at the lower part of the mounting base plate, the fan to be tested is fixed on the vibration table, each of the vibration tables has a built-in vibration generator, the vibration generator comprises a host computer and a drive controller embedded and installed in the inner cavity of the vibration table, the host computer is used to generate a vibration signal and transmit it to the drive controller, the drive controller is used to receive the vibration signal of the host computer and generate a vibration excitation source, so that the vibration table vibrates with a set amplitude and a set frequency.

[0005] Furthermore, the vibration signal of the host computer may be generated spontaneously or obtained by user input.

[0006] Furthermore, the vibration signal of the host computer is a vibration signal collected during the actual transportation process.

[0007] Furthermore, each of the vibration platforms is also embedded with an Internet of Things module, and the vibration signal of the host computer is obtained by receiving vibration data transmitted from the outside by the Internet of Things module.

[0008] The beneficial effects of the utility model compared with the prior art are:

[0009] 1. The device can quickly realize the simulated transportation vibration test of small fans, saving manpower, shortening the test time and reducing the test cost; it can also adapt to a variety of models; it supports a variety of scene applications, and can realize local fixed frequency and amplitude control or upper computer curve control; it accelerates the simulation of the impact of vibration on the fan during transportation, and truly restores the actual scene of the fan transportation process; it solves the difficulties of long fan transportation test cycle and high cost in the industry;

[0010] 2. The solution solves the difficulties and pain points of vibration testing during wind turbine transportation in the industry, so that the test results can truly reflect the state of vibration during transportation. Using conventional vibration test benches on the market, after improvement and matching with the waveform signal generated by the host computer, the amplifier can easily simulate the vibration under various road conditions; it can accelerate the simulation of the state during transportation, which is extremely convenient for improving the verification work in the product process; it can be replicated and applied in batches, and can provide multiple sample data in the shortest time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional diagram of a simulation generating device for transport vibration of a small fan according to the utility model;

[0012] Figure 2 A schematic diagram of the simulation generating device involved when executing the simulation generating device;

[0013] Figure 3 The following is an architectural diagram of the simulation generation device involved when executing (the signal is obtained from an external sensor).

[0014] In the figure: 1. Isolation pad; 2. Installation base plate; 3. Vibration table; 4. Fan to be tested. DETAILED DESCRIPTION

[0015] like Figure 1 , Figure 2 and Figure 3 As shown, a simulation generating device for transport vibration of a small fan according to an embodiment of the utility model comprises a mounting base plate 2, a plurality of vibration stands 3 arranged on the mounting base plate 2, an isolation rubber pad 1 is arranged at the lower part of the mounting base plate 2, a fan 4 to be tested is fixed on the vibration stand 3, each vibration stand 3 has a built-in vibration generator, the vibration generator comprises a host computer and a drive controller embedded and installed in the inner cavity of the vibration stand 3, the host computer is used to generate a vibration signal and transmit it to the drive controller, the drive controller is used to receive the vibration signal of the host computer and generate a vibration excitation source, so that the vibration stand 3 vibrates with a set amplitude and a set frequency; the vibration signal of the host computer can be generated spontaneously by the system or obtained by user input; the vibration signal of the host computer can also be a vibration signal collected during actual transportation; or, each vibration stand 3 is also embedded with an Internet of Things module, and the vibration signal of the host computer is obtained by receiving vibration data transmitted from the outside by the Internet of Things module.

[0016] The device can quickly realize the simulated transportation vibration test of small fans, save manpower, shorten the test time, and reduce the test cost; it can also adapt to a variety of models; it supports a variety of scene applications, and can realize local fixed frequency and fixed amplitude control or upper computer curve control; it accelerates the simulation of the impact of vibration on the fan during transportation, and truly restores the actual scene of the fan transportation process; it solves the difficulties of long cycle and high cost of fan transportation test in the industry; the solution solves the difficulties and pain points of vibration testing during fan transportation in the industry, so that its test results can truly reflect the state of vibration during transportation. Using the conventional vibration table on the market, after improvement and matching with the waveform signal generated by the upper computer, the amplifier can easily simulate the vibration under various road conditions; it can accelerate the simulation of the state during transportation, which is extremely convenient for improving the verification work in the product process; it can be copied and applied in batches, and can provide multiple sample data in the shortest time.

[0017] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings during specific use;

[0018] The vibration table adopts the commonly used vibration table on the market and is equipped with a universal mounting base, which can be suitable for various models of small fans; a thickened support plate is used at the bottom of the vibration table to ensure stability during the test and not cause resonance; an isolation rubber pad with high buffering performance is used at the bottom of the vibration table to effectively isolate the vibration source generated by the vibration table.

[0019] The main core of the device is the vibration generator; the vibration generator uses an embedded drive control, including an embedded host computer and a drive controller. Through the host computer, it can be set to a fixed frequency vibration mode, a fixed amplitude vibration mode, and a random signal vibration mode. In the random signal mode, the generation of random signals can come from user-defined signals, or by reading the vibration signal collected during the actual transportation process as a signal source. During implementation, a portable collector is used to collect the vibrations that the items are subjected to during transportation, and the vibration data is recorded. Only by collecting the vibration signal during transportation once, it can be continuously used as a verification source in subsequent tests. At the same time, the device itself is equipped with an IoT module, which can remotely transmit and control vibration signals through the IoT module.

[0020] Vibration control is mainly divided into two parts: signal generation system and drive controller; the host computer can generate vibration signal source according to user definition or read real acquisition signal, and after passing the signal source to the drive controller, it can generate vibration excitation source. At the same time, according to the national standard requirements, impact signal can be randomly inserted into the signal to generate instantaneous high amplitude vibration excitation source.

[0021] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for simulating the vibration of small fan transportation, characterized in that: It includes a mounting base plate and a plurality of vibration tables arranged on the mounting base plate. An isolation rubber pad is arranged at the lower part of the mounting base plate. The wind turbine to be tested is fixed on the vibration table. Each of the vibration tables has a built-in vibration generator. The vibration generator includes a host computer and a drive controller embedded in the inner cavity of the vibration table. The host computer is used to generate a vibration signal and transmit it to the drive controller. The drive controller is used to receive the vibration signal of the host computer and generate a vibration excitation source to make the vibration table vibrate with a set amplitude and a set frequency.

2. A device for simulating the transport vibration of a small fan according to claim 1, characterized in that: The vibration signal of the host computer is generated spontaneously by the system or obtained by user input.

3. The device for simulating the transport vibration of a small fan according to claim 1, characterized in that: The vibration signal of the host computer is a vibration signal collected during the actual transportation process.

4. The device for simulating the transport vibration of a small fan according to claim 1, characterized in that: Each of the vibration platforms is also embedded with an Internet of Things module, and the vibration signal of the host computer is obtained by the Internet of Things module receiving vibration data transmitted from the outside.

Images