Compressor vibration testing device

Abstract

The utility model relates to the technical field of vibration testing, and provides a compressor vibration testing device which comprises a base used for supporting the whole structure of the device, a plurality of foot pads are fixedly installed at the bottom of the base, and the foot pads are made of rubber and can play a role in vibration prevention and noise reduction. A plurality of stand columns are fixedly installed on one side of the top of the base, the positions, close to the top end, of the stand columns are movably sleeved with vibration plates, a plurality of rubber rings are fixedly installed at the top and the bottom of each vibration plate, grooves are formed in the stand columns and used for limiting the vibration range of the vibration plates, and a top plate is arranged at the top end and used for limiting the vibration plates. The rubber ring can reduce abrasion caused by vibration of the vibration plate and effectively reduce noise, the motor is connected with the frequency converter, the rotating speed can be adjusted according to test requirements, and the device is simple in structure, low in cost, capable of effectively solving the problems that manual test is large in measurement accuracy error and large in human factor interference, controllable in test and frequency and wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration testing, in particular to a compressor vibration testing device. Background Art

[0002] Compressor vibration test device: key equipment for evaluating the safety, reliability and efficiency of compressor operation. The compressor vibration test device is an important equipment used to evaluate the mechanical vibration level of the compressor in operation. This test device plays a vital role in ensuring the safety, reliability and efficiency of the compressor operation. By simulating the various vibration environmental impacts encountered by the product during transportation, installation and use, the vibration test device can determine whether the product can withstand various environmental vibrations. The most commonly used vibration modes in the compressor vibration test device can be divided into two types: sinusoidal vibration and random vibration. Sinusoidal vibration is a test method frequently used in laboratories. It is mainly used to simulate the vibration caused by rotation, pulsation, and oscillation, as well as the product structure resonance frequency analysis and resonance point residence verification. Sinusoidal vibration is divided into sweep frequency vibration and fixed frequency vibration. Sweep frequency vibration is a vibration that changes continuously within a certain frequency range, while fixed frequency vibration is a vibration with a fixed frequency. Random vibration is mainly used to simulate the overall structural seismic strength assessment of the product and the transportation environment in the packaging state. The random vibration test can simulate the various complex vibration conditions encountered by the compressor in the actual use environment, so as to more comprehensively evaluate the seismic performance of the product.

[0003] However, in the prior art, vibration test devices such as vibration tables are complex in structure and expensive, which is obviously too expensive for simple tests or small compressor vibration tests. In addition, the manual test method of handheld vibration meters also has problems such as large measurement accuracy errors and large human interference. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that vibration testing devices such as vibration tables have complex structures and are expensive, which are too expensive for simple tests or vibration tests on small compressors, and handheld vibration meters and manual tests have large measurement accuracy errors and large interference from human factors.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a compressor vibration testing device, comprising: a base, used to support the overall structure of the device, a plurality of foot pads are fixedly installed on the bottom of the base, the foot pads are made of rubber material, and can play a shock-proof and noise-reducing effect, a plurality of columns are fixedly installed on one side of the top of the base, and a plurality of the columns are movably sleeved with vibration plates near the top, a plurality of rubber rings are fixedly installed at the top and bottom of the vibration plate, grooves are opened on the columns to limit the vibration range of the vibration plate, and a top plate is provided on the top to limit the vibration plate. The rubber ring can reduce the wear of the vibration plate caused by vibration and effectively reduce noise.

[0006] Preferably, two fixed blocks are fixedly installed on one side of the top of the base, and a long shaft is movably embedded inside the two fixed blocks. An eccentric wheel is fixedly sleeved on the long shaft, and a pulley is fixedly installed on one end of the long shaft. The eccentric wheel rotates when driven by a motor, collides with a circular plate, and causes the circular plate to move upward, thereby driving the top mounting frame to move and causing the vibration plate to move upward.

[0007] Preferably, two mounting frames are fixedly installed at the bottom of the vibration plate, short shafts are movably embedded inside the two mounting frames, and circular plates are movably sleeved outside the two short shafts. The circular plates are rotatable, which can reduce the friction between the eccentric wheel and the circular plate without affecting the vibration and reduce the loss of parts.

[0008] Preferably, two mounting blocks 1 are fixedly installed on one side of the top of the base, two mounting blocks 2 are fixedly installed on the bottom of the vibration plate, and two springs are fixedly installed on the opposite sides of the two mounting blocks 1 and the two mounting blocks 2, so that the vibration plate can move downward quickly under the action of the spring elastic force when the eccentric wheel is not in contact with the circular plate.

[0009] Preferably, a mounting bracket is fixedly installed on the other side of the top of the base, a motor is fixedly installed on the mounting bracket, a second pulley is fixedly installed on the output shaft of the motor, belts are provided on the movable sleeves of the second pulley and the first pulley, and the motor is connected to a frequency converter, and the rotation speed can be adjusted according to test requirements.

[0010] Preferably, the compressor to be tested is fixedly mounted on the top of the vibration plate, and a sensor is movably mounted on the top of the compressor to be tested. The sensor is connected to a data acquisition system to transmit the detection data to the data acquisition system.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, an eccentric wheel vibration table is used to implement vibration testing, which has a simple structure and low testing cost. Automatic vibration measurement is adopted to effectively solve the problems of large measurement accuracy errors and large interference from human factors in manual testing. The test frequency is controllable and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A structural schematic diagram of a compressor vibration test device is proposed for the utility model;

[0014] Figure 2 A side structural schematic diagram of a compressor vibration test device is proposed for the utility model;

[0015] Figure 3 The utility model provides a bottom-up structural schematic diagram of a compressor vibration test device;

[0016] Figure 4 The utility model provides a side structural schematic diagram of a compressor vibration testing device.

[0017] Legend:

[0018] 1. Base; 2. Foot pad; 3. Column; 4. Vibrating plate; 5. Rubber ring; 6. Fixing block; 7. Long shaft; 8. Eccentric wheel; 9. Mounting frame; 10. Short shaft; 11. Round plate; 12. Mounting block 1; 13. Mounting block 2; 14. Spring; 15. Pulley 1; 16. Mounting bracket; 17. Motor; 18. Pulley 2; 19. Belt; 20. Compressor under test; 21. Sensor. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment 1, the utility model provides a compressor vibration test device, including: a base 1, a plurality of foot pads 2 are fixedly installed at the bottom of the base 1, the foot pads 2 are made of rubber material, and can play the effect of shockproof and noise reduction, a plurality of columns 3 are fixedly installed on the top side of the base 1, a plurality of columns 3 are movably sleeved with vibration plates 4 near the top, a plurality of rubber rings 5 ​​are fixedly installed at the top and bottom of the vibration plate 4, a groove is opened on the column 3 to limit the vibration range of the vibration plate 4, a top plate is provided at the top to limit the position of the vibration plate 4, the rubber ring 5 can reduce the wear of the vibration plate 4 caused by vibration, and effectively reduce noise; two fixed blocks 6 are fixedly installed on the top side of the base 1, a long shaft 7 is movably embedded in the two fixed blocks 6, an eccentric wheel 8 is fixedly sleeved on the long shaft 7, the eccentric wheel 8 rotates under the drive of the motor 17, and hits the circular plate 11 when rotating, so that the circular plate 11 moves upward, drives the installation frame 9 at the top to move, and makes the vibration The plate 4 moves upward, and a pulley 15 is fixedly installed at one end of the long axis 7; two mounting frames 9 are fixedly installed at the bottom of the vibration plate 4, and short shafts 10 are movably embedded inside the two mounting frames 9, and circular plates 11 are movably sleeved on the outer sides of the two short shafts 10; two mounting blocks 12 are fixedly installed on one side of the top of the base 1, and two mounting blocks 2 13 are fixedly installed on the bottom of the vibration plate 4, and two springs 14 are fixedly installed on the opposite side of the two mounting blocks 12 and the two mounting blocks 2 13; under the contraction action of the spring 14, when the eccentric wheel 8 does not contact the circular plate 11, the vibration plate 4 moves downward quickly, and a mounting bracket 16 is fixedly installed on the other side of the top of the base 1, and a motor 17 is fixedly installed on the mounting bracket 16, and a pulley 2 18 is fixedly connected to the output shaft of the motor 17, and a belt 19 is movably sleeved on the pulley 2 18 and the pulley 15, and the motor 17 is connected to a frequency converter, and the speed can be adjusted according to the test needs.

[0022] In the specific implementation process, when it is needed, the compressor 20 to be tested is fixedly installed on the top of the vibration plate 4, the sensor 21 is installed at the test position, the control motor 17 is started and adjusted to the required vibration frequency through the frequency converter, the motor 17 drives the pulley 2 18 to rotate, and the pulley 1 15 is driven to rotate under the transmission action of the belt 19, so that the long shaft 7 rotates, and the eccentric wheel 8 rotates, so that the eccentric wheel 8 collides with the circular plate 11, and the circular plate 11 lifts the vibration plate 4 on the mounting frame 9 under the squeezing action of the eccentric wheel 8, and then the eccentric wheel 8 leaves the circular plate 11, and the vibration plate 4 descends along the column 3, and accelerates the descent under the action of the spring 14, and so on and so forth to produce the effect of vibration.

[0023] In Embodiment 2, a tested compressor 20 is fixedly mounted on the top of the vibration plate 4, and a sensor 21 is movably mounted on the top of the tested compressor 20. The sensor 21 is connected to a data acquisition system to transmit the detection data to the data acquisition system.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A compressor vibration test device, characterized in that: The testing device comprises: a base (1), a plurality of foot pads (2) are fixedly mounted on the bottom of the base (1), a plurality of columns (3) are fixedly mounted on one side of the top of the base (1), a vibration plate (4) is movably mounted near the top of the plurality of columns (3), and a plurality of rubber rings (5) are fixedly mounted on the top and bottom of the vibration plate (4) on the plurality of columns (3).

2. A compressor vibration testing device according to claim 1, characterized in that: Two fixed blocks (6) are fixedly mounted on one side of the top of the base (1), a long shaft (7) is movably embedded inside the two fixed blocks (6), an eccentric wheel (8) is fixedly sleeved on the long shaft (7), and a pulley (15) is fixedly mounted on one end of the long shaft (7).

3. A compressor vibration testing device according to claim 1, characterized in that: Two installation frames (9) are fixedly mounted on the bottom of the vibration plate (4), short shafts (10) are movably embedded inside the two installation frames (9), and circular plates (11) are movably sleeved outside the two short shafts (10).

4. A compressor vibration testing device according to claim 1, characterized in that: Two mounting blocks (12) are fixedly mounted on one side of the top of the base (1), two mounting blocks (13) are fixedly mounted on the bottom of the vibration plate (4), and two springs (14) are fixedly mounted on the opposite side of the two mounting blocks (12) and the two mounting blocks (13).

5. A compressor vibration testing device according to claim 2, characterized in that: A mounting bracket (16) is fixedly mounted on the other side of the top of the base (1), a motor (17) is fixedly mounted on the mounting bracket (16), a second pulley (18) is fixedly connected to the output shaft of the motor (17), and a belt (19) is movably sleeved on the second pulley (18) and the first pulley (15).

6. A compressor vibration testing device according to claim 3, characterized in that: A compressor (20) to be tested is fixedly mounted on the top of the vibration plate (4), and a sensor (21) is movably mounted on the top of the compressor (20) to be tested.

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