Magnetic suspension vibration isolation testing machine

Abstract

The utility model belongs to the technical field of testing, and particularly relates to a magnetic suspension vibration isolation testing machine which comprises a magnetic suspension base and a floater, a mounting piece is arranged on the magnetic suspension base, the floater is arranged above the magnetic suspension base, the magnetic suspension base comprises a circuit board, a Hall sensor, an electrified coil and a first magnet, and the first magnet is in a circular ring shape. The first magnet is arranged above the circuit board, the mounting piece is arranged between the first magnet and the circuit board, the four electrified coils are all arranged on the circuit board, the Hall sensor is arranged among the four electrified coils, four second magnets opposite to the first magnet in polarity are evenly distributed below the floater, and an adjusting hole is formed in the end face of the support. An adjusting rod is in threaded connection in the adjusting hole; compared with the prior art, the floater is suspended in the air through the magnetic suspension technology, and noise measurement errors caused by surrounding vibration when solids spread are isolated. Therefore, a more convenient test method and more accurate test data are obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to test technical field more specifically, it relates to a magnetic suspension vibration isolation testing machine. BACKGROUND

[0002] The purpose of the vibration test is to simulate a series of vibration phenomena, test whether the product can withstand the vibration environment during the life cycle of transportation or use process, and also determine the product design and function requirement standard. The essence of the vibration test is to confirm the reliability of the product and screen out the defective products before delivery, and evaluate the failure analysis of the defective products to make them high-level and high-reliability products.

[0003] For example, the authorized announcement number CN213981807U discloses a kind of air floatation vibration isolation platform, utilize the mesa of horizontal arrangement and the support assembly of being arranged in the bottom of the mesa form this optical platform, heavy load air floatation vibration isolator is arranged between mesa and support assembly, make its load in certain space significantly increase, and can be installed different specifications size heavy load air floatation vibration isolator according to actual different load requirement;Further, by adjusting assembly is arranged in the bottom of the support column, utilize lifting foot and the movable connection of the containing groove, its surface is provided with screw thread, with the threaded cooperation of the containing groove, spin in or spin out in containing groove, to control the height and flatness of mesa.

[0004] In the above, vibration is detected by air floatation, but there are still the following problems:

[0005] 1. High environmental requirements: air floatation vibration isolation platform requires a relatively clean and controlled environment to prevent dust and other particles from entering the air cushion system, which may cause system performance degradation or damage.

[0006] 2. Energy consumption and cost: this type of system usually needs continuous supply of compressed air, which may cause high energy consumption, and the initial investment and maintenance cost is also relatively high.

[0007] 3. Space requirements: due to the need for gas circulation, the required space is relatively large.

[0008] 4. System complexity: compared with simple mechanical vibration isolation systems, air floatation vibration isolation platforms are more complex in design and operation, and require professional knowledge to ensure correct operation and adjustment of the system.

[0009] 5. Noise: there is still air disturbance between the upper and lower platforms, which may cause relatively large noise. Utility model content

[0010] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a magnetic suspension vibration isolation testing machine which can avoid noise and reduce energy consumption.

[0011] To achieve the above object, the utility model provides the following technical scheme:

[0012] A magnetic suspension vibration isolation test machine, including magnetic suspension base and float, be equipped with mounting piece on the magnetic suspension base, float is placed above the magnetic suspension base, the magnetic suspension base includes circuit board, hall sensor, energized coil and first magnet, first magnet is circular ring,

[0013] The first magnet is placed above the circuit board, the mounting piece is placed between the first magnet and the circuit board, the energized coil has four, the four energized coils are all placed on the circuit board, the hall sensor is placed between the four energized coils,

[0014] Four second magnets with opposite polarity to the first magnet are evenly distributed below the float,

[0015] The mounting piece includes a ring plate and a plurality of supports connected to the ring plate, one end of the support is placed in the first magnet and the other end penetrates the first magnet,

[0016] An adjusting hole is formed in the end face of the support, and an adjusting rod is threadedly connected in the adjusting hole.

[0017] The utility model further sets up that: the lower end face of the adjusting rod is provided with a threaded hole, a spring is arranged on the inner wall of the threaded hole, a secondary rod is threadedly connected in the threaded hole, and a bottom disc is formed in the lower end face of the secondary rod.

[0018] The utility model further sets up that: the float is made of ferrite material.

[0019] The utility model further sets up that: a through hole is formed in the outer peripheral wall of the first magnet for the support to pass through.

[0020] The utility model further sets up that: a placing disc is fixed above the float.

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] Because the principle of electromagnetism is used, the requirement for air is reduced, and the test can still be carried out under normal environment; and no air pump and high-power electrical appliances are needed, so that the demand for energy and the energy consumption requirement are reduced; no gas flow is needed, so that only a small space is needed to place the sensor; the sensor can be started only by being powered on, and the problem can be found by checking the corresponding circuit. The float uses air insulation, and the magnetic suspension uses magnetic insulation, so that the vibration isolation effect is better, and the noise is greatly reduced. The float is suspended in the air by the magnetic suspension technology, so that the noise measurement error caused by the vibration of the surrounding solid is isolated. Therefore, a more convenient test method and more accurate test data are obtained. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a structure schematic view of the utility model embodiment;

[0024] Fig. 2 It is a front view of the utility model embodiment;

[0025] Fig. 3 It is a top view of the magnetic suspension base of the utility model embodiment.

[0026] Magnetic suspension base 1, float 2, mounting piece 3, circuit board 4, hall sensor 5, energizing coil 6, first magnet 7, second magnet 8, support 9, adjusting rod 10, sub rod 11, chassis 12, through hole 13, placement disc 14. Specific implementation

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] Working principle: first, we will place the magnetic suspension base 1 stably on the vibration isolation table, and adjust the height of the magnetic suspension base 1 according to the requirements. When adjusting 1, the length of the sub rod 11 is adjusted by rotating the slot with a screwdriver, and then the power is turned on.

[0030] Then the float 2 is fixed with the sensor, and then slowly placed above the magnetic suspension. After reaching the hovering and stationary condition, start testing the zero offset data. As long as there is slight vibration during the testing of the zero offset data, the hall sensor 5 will detect the position change, thereby changing the corresponding coil voltage, so that the float 2 obtains balance again. For example, if the float 2 tilts to the lower right corner, the right lower corner coil will increase the voltage, keeping the absolute balance of the float 2.

[0031] Finally, the magnetic suspension will continue to maintain the stationary state. We can collect the sensor state through serial communication and analyze it to obtain more accurate data

[0032] As shown in Figs. 1 to 3 ​

[0033] The magnetic suspension base 1 and the float 2 are included, the float 2 is made of ferrite material, the ferrite material has the characteristics of high permeability, good toughness and stable structure, and can stably maintain the strength and direction of the magnetic field.

[0034] The magnetic suspension base 1 is provided with a mounting piece 3, the float 2 is placed above the magnetic suspension base 1, the magnetic suspension base 1 includes a circuit board 4, a Hall sensor 5, a power coil 6 and a first magnet 7, the first magnet 7 is in the form of a ring, and the Hall sensor 5 is communicatively connected with a PC end, so as to facilitate serial communication collection of the Hall sensor 5 state and analysis to obtain more accurate data.

[0035] The first magnet 7 is placed above the circuit board 4, the mounting piece 3 is placed between the first magnet 7 and the circuit board 4, the power coil 6 has four, the first magnet 7 has a through hole 13 for the support 9 to pass through, the four power coils 6 are all placed on the circuit board 4, and the Hall sensor 5 is placed between the four power coils 6.

[0036] The float 2 is uniformly provided with four second magnets 8 with opposite polarity to the first magnet 7, and the first magnet 7 and the second magnet 8 can generate buoyancy due to the opposite polarity.

[0037] The mounting piece 3 includes a ring plate and a plurality of supports 9 connected with the ring plate, one end of the support 9 is placed in the first magnet 7 and the other end passes through the first magnet 7.

[0038] The end surface of the support 9 is provided with an adjusting hole, the adjusting hole is threadedly connected with an adjusting rod 10, the lower end surface of the adjusting rod 10 is provided with a threaded hole, the inner wall of the threaded hole is provided with a spring at the upper end, the threaded hole is threadedly connected with a secondary rod 11, and the height of the magnetic suspension base 1 is adjusted by adjusting the connection length between the secondary rod 11 and the adjusting rod 10.

[0039] The lower end surface of the secondary rod 11 is provided with a base plate 12, and the end surface of the base plate 12 is provided with a notch, so as to facilitate the secondary rod 11 to be rotated out by a screwdriver.

[0040] The above only describes the preferred embodiment of the present application, and does not limit the present application, and the skilled in the art can make usual changes and replacements within the technical scheme of the present application, which should be included in the protection scope of the present application.

Claims

1. A magnetic levitation vibration isolation test machine characterized by: Including magnetic suspension base (1) and float (2), the mounting piece (3) is arranged on the magnetic suspension base (1), the float (2) is placed above the magnetic suspension base (1), the magnetic suspension base (1) includes circuit board (4), hall sensor (5), energized coil (6) and first magnet (7), the first magnet (7) is annular, The first magnet (7) is placed above the circuit board (4), the mounting piece (3) is arranged between the first magnet (7) and the circuit board (4), the energized coil (6) has four, four energized coils (6) are all arranged on the circuit board (4), the hall sensor (5) is arranged between four energized coils (6), Four second magnets (8) with polarity opposite to the first magnet (7) are uniformly arranged below the float (2), The mounting piece (3) includes annular plate and a plurality of supports (9) connected with the annular plate, one end of the support (9) is arranged in the first magnet (7) and the other end penetrates the first magnet (7), The end surface of the support (9) is provided with an adjusting hole, and the adjusting hole is threadedly connected with an adjusting rod (10).

2. The maglev vibration isolation test machine of claim 1, wherein: The lower end surface of the adjusting rod (10) is provided with a threaded hole, the inner wall of the threaded hole is provided with a spring at the upper end, the threaded hole is threadedly connected with a secondary rod (11), the lower end surface of the secondary rod (11) is provided with a base plate (12), and the end surface of the base plate (12) is provided with a notch.

3. The maglev vibration isolation test machine of claim 1, wherein: The float (2) is made of ferrite material.

4. The maglev vibration isolation test machine of claim 1, wherein: The outer peripheral wall of the first magnet (7) is provided with a through hole (13) for the support (9) to pass through.

5. The maglev vibration isolation test machine of claim 1, wherein: The float (2) is fixed with a placing disc (14) above.

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