Magnetic suspension hydraulic spherical vibration damper

Abstract

Cylindrical bosses are arranged on the upper portion and the lower portion of an inner cylindrical bag body and an outer cylindrical bag body, the inner cylindrical bag body and the outer cylindrical bag body are integrally machined in an injection molding mode, through holes are formed in the cylindrical bosses, end covers are installed in the through holes through wedge groove structures, the end covers are connected with iron cores with electromagnetic coils, a boss wrapping supporting plate is arranged in the middle of the inner cylindrical bag body, and through holes are formed in the two ends of the supporting plate. When current passes through the electromagnetic coil, magnetic poles generated by the iron core are the same as magnetic poles of the permanent magnets to generate magnetic damping, the inner cylindrical bag body is filled with viscous oil liquid, the viscous oil liquid generates damping when the inner cylindrical bag body stretches out and draws back, and an independent closed space is formed between the inner cylindrical bag body and the outer cylindrical bag body. Magnetic damping and oil viscous damping are adopted for vibration reduction, the vibration reduction strength is adjusted by controlling the magnitude of current, the influence of environments such as temperature and air pressure on the vibration reduction effect can be reduced, and meanwhile leaked oil can be isolated.

Description

Technical Field

[0001] The utility model relates to a small spherical vibration reduction, in particular to a small hydraulic spherical vibration reduction. Background Art

[0002] Existing hydraulic spherical vibration reduction usually achieves vibration reduction effect by combining the viscous damping generated by the internal liquid during movement with the elastic damping generated by the external sphere. It is sensitive to external environmental factors such as temperature and air pressure, which has an adverse effect on the vibration reduction effect. Under extreme conditions, it may cause vibration reduction failure, and the vibration reduction intensity cannot be actively controlled.

[0003] In addition, leakage of the hydraulic ball shock absorber may cause damage to parts or electronic equipment. Utility Model Content

[0004] In order to solve the problems in the prior art that the hydraulic spherical vibration reduction is sensitive to changes in factors such as temperature and air pressure in the external environment, cannot actively adjust the vibration reduction strength, and leakage causes damage to other parts or equipment, the utility model provides an electromagnet and a permanent magnet installed inside the hydraulic spherical vibration reduction, and the magnetic damping of the electromagnet and the permanent magnet cooperates with the viscous damping of the oil to reduce the influence of changes in external environmental factors on the vibration reduction effect and achieve the purpose of actively controlling the vibration reduction strength, and the closed structure between the inner and outer cylindrical capsules is used to isolate the leakage.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a magnetic suspension hydraulic spherical vibration reduction, including an outer cylindrical capsule and an inner cylindrical capsule, a first cylindrical boss is arranged on the upper and lower sides of the outer cylindrical capsule, a second cylindrical boss is arranged on the outer side of the first cylindrical boss, a through hole is arranged on the second cylindrical boss, a second end cover is installed in the through hole, a closed hole is arranged on the second end cover, the first end cover is installed in the closed hole, and an electromagnetic device is arranged on the side of the first end cover close to the inner cylindrical capsule. An exhaust hole is arranged at the upper end of the first boss, and a plug is installed in the exhaust hole. A third boss is arranged inside the inner cylindrical capsule, and the third boss wraps the support plate, and permanent magnets are installed on the upper and lower support plates, and the permanent magnet and the electromagnetic device are in the same straight line, and the upper and lower distances are equal.

[0006] The above-mentioned magnetic suspension hydraulic spherical vibration reduction, the outer cylindrical sac, the first cylindrical boss and the inner cylindrical sac are integrally injection molded, the outer and inner cylindrical sacs are independent closed structures, gas is filled between the outer and inner cylindrical sacs, the first cylindrical boss is provided with an exhaust hole near the through hole, and a plug is provided in the exhaust hole.

[0007] The above-mentioned magnetic suspension hydraulic spherical vibration reduction, the inner cylindrical capsule, the second cylindrical boss and the first cylindrical boss are integrally injection molded, and the through hole is provided with a groove near the end of the inner cylindrical capsule, and the second end cover is provided with a wedge near the side of the inner cylindrical capsule, and the two wedge grooves cooperate to form a closed structure. A third boss is provided in the middle of the inner cylindrical capsule, and the inner cylindrical capsule and the third boss are integrally injection molded. A support plate with a through hole is provided inside the third boss, and a permanent magnet is embedded in the middle of the support plate. The center of the permanent magnet is located at the central axis of the inner cylindrical capsule, and the inner cylindrical capsule is filled with oil.

[0008] The above-mentioned magnetic suspension hydraulic spherical vibration reduction has a closed hole at the center of the second end cover, a groove at the outer end of the closed hole, the first end cover is installed in the closed hole, a connected iron core is provided below the first end cover, the iron core is provided with an electromagnetic coil, and the iron core and the permanent magnet are installed concentrically and coaxially.

[0009] The beneficial effect of the utility model is that the utility model adopts the method of combining oil viscous damping with magnetic damping to reduce vibration, effectively alleviating or eliminating the adverse effects of external environmental factors such as temperature, air pressure, etc. on the vibration reduction effect. There is an independent closed space between the outer cylindrical capsule and the inner cylindrical capsule, which effectively prevents the inner cylindrical capsule from leaking oil and contaminating the circuit system or mechanical device.

[0010] The purpose of actively adjusting the vibration reduction intensity can be achieved by controlling the size of the electromagnetic force. In addition, in the event of a sudden failure of either the hydraulic vibration reduction or the electromagnetic vibration reduction, the vibration reduction function can still be realized, thereby improving the reliability of the magnetic suspension hydraulic spherical vibration reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the magnetic suspension hydraulic spherical vibration reduction proposed by the utility model;

[0012] Figure 2 For along Figure 1 Schematic diagram of the EE line;

[0013] In the figure: 1 outer cylindrical capsule, 2 inner cylindrical capsule, 3 first cylindrical boss, 4 second cylindrical boss, 5 second end cover, 6 first end cover, 7 electromagnetic coil, 8 iron core, 9 permanent magnet, 10 third boss, 11 plug, 12 support plate. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0015] Reference Figure 1-Figure 2The magnetic suspension hydraulic spherical vibration reduction device comprises an outer cylindrical capsule 1 and an inner cylindrical capsule 2. A first boss 3 is arranged on the upper and lower sides of the outer cylindrical capsule 1. A second boss 4 is arranged on the outer side of the first boss 3. The outer cylindrical capsule 1, the inner cylindrical capsule 2, the first boss 3 and the second boss 4 are integrally injection molded. A through hole is arranged on the second boss 4. A groove is arranged in the through hole near the end of the inner cylindrical capsule 2. A wedge is arranged on the second end cover 5 and the end of the inner cylindrical capsule 2, and the wedges are bonded with glue to achieve airtight installation. The second end cover 5 is arranged with a first installation closed hole. A groove is arranged on the upper end of the first installation closed hole. A first end cover 6 with a wedge is installed in the first installation closed hole and the wedges are bonded with glue. A connected iron core 8 is arranged under the first end cover 6. An electromagnetic coil 7 is arranged on the side of the first end cover 6 near the inner cylindrical capsule 2. When current passes through the electromagnetic coil 7, the iron core 8 generates magnetism and generates repulsive force with the permanent magnet 9. When the outer cylindrical capsule 1 and the inner cylindrical capsule 2 perform compression movement, damping is generated to achieve vibration reduction.

[0016] The inner cylindrical capsule 2 of the magnetic suspension hydraulic spherical vibration reduction is filled with viscous oil, and damping is generated when the inner cylindrical capsule 2 performs telescopic movement. There is a closed space between the outer cylindrical capsule 1 and the inner cylindrical capsule 2, and gas is filled in the closed space. Damping can also be generated when the gas is compressed to achieve vibration reduction. When oil leaks from the inner capsule 2, the closed space can prevent the oil from flowing out of the inner capsule 1, thereby achieving the function of protecting the external mechanical system and electronic system of the magnetic suspension hydraulic spherical vibration reduction. The first boss 3 is provided with an exhaust hole, and a plug 11 with a conical head is installed in the exhaust hole to check whether the inner capsule 1 is leaking.

[0017] A third boss 10 is arranged inside the inner cylindrical capsule 2 of the magnetic suspension hydraulic spherical vibration reduction. The inner cylindrical capsule 2 and the third boss 10 are integrally injection molded. The third boss 10 forms an oblique plane symmetrical structure with the support plate 12 as the surface. The third boss 10 is higher near the inner capsule 2 than the side away from the inner capsule 2. The third boss 10 is provided with a support plate 12 with through holes at both ends, and the through holes at both ends of the support plate 12 are wrapped in the third boss 10 during the injection molding process. Permanent magnets 9 with the same magnetic poles are inlaid and installed in the center of the support plate 12, and the permanent magnet 9 and the center of the iron core 8 are in the same straight line, and the upper and lower distances are the same.

Claims

1. A magnetic suspension hydraulic spherical vibration reduction, characterized in that: The upper and lower ends of the outer cylindrical capsule are provided with a first boss and a second boss. The outer cylindrical capsule and the inner cylindrical capsule are respectively filled with gas and viscous oil. The first end cover is provided with an iron core and an electromagnetic coil. The third boss is provided with a support plate inlaid with a permanent magnet.

2. The magnetic suspension hydraulic spherical vibration reduction device according to claim 1 is characterized in that: The outer cylindrical capsule, the inner cylindrical capsule, the first boss and the second boss are a closed whole, and the outer cylindrical capsule and the inner cylindrical capsule have separate closed spaces. The first boss is provided with an exhaust hole, and a plug is installed in the exhaust hole.

3. The magnetic suspension hydraulic spherical vibration reduction according to claim 1 is characterized in that: The first boss is provided with a through hole and a groove is provided at the end of the through hole close to the inner cylindrical capsule. A second end cover with a wedge is installed in the through hole. The second end cover is provided with a closed hole. A groove is provided at the top of the closed hole. The first end cover is installed in the closed hole. The first end cover is provided with a connected iron core, and an electromagnetic coil is installed at the lower end of the iron core.

4. The magnetic suspension hydraulic spherical vibration reduction device according to claim 1 is characterized in that: The third boss is integrally formed with the inner cylindrical capsule by injection molding. Through holes are arranged at both ends of the support plate and the support plate is wrapped in the third boss. Permanent magnets are inlaid and installed on the upper and lower parts of the support plate.

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