Wall-breaking convex foil dynamic pressure gas thrust bearing
A thrust bearing and gas technology, which is applied to sliding contact bearings, rotating bearings, bearings, etc., to achieve the effect of simple structure, easy assembly, good elastic deformation ability and rigidity adjustability
Pending Publication Date: 2022-06-10
启承悬浮科技(西安)有限公司
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Problems solved by technology
Among them, the corrugated foil type dynamic pressure gas bearing has high dimensional accuracy, difficult processing, eccentricity is easy to occur during assembly, and the dynamic characteristics of the bearing are unstable; the bubble type dynamic pressure gas bearing is difficult to form, and the bearing structure rigidity is large, and the start-stop stage and the operation process Friction damage is prone to occur in the medium, and the impact resistance is insufficient; the metal mesh type dynamic pressure gas bearing has complex process, difficult processing and difficult assembly
Method used
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Embodiment 1
[0026] Embodiment three:
[0027] Embodiment four:
[0028] Embodiment five:
[0029] Embodiment six:
Embodiment 2
[0031] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments. It cannot be determined that the specific embodiments of the present invention are limited thereto. Under the circumstances, some simple deduction or replacement can also be made, which should be regarded as belonging to the scope of patent protection determined by the submitted claims of the present invention.
Embodiment 3
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The invention discloses a wall-broken convex foil dynamic pressure gas thrust bearing. The thrust bearing comprises a bearing seat, an elastic foil and a flat foil, an elastic foil is arranged on the upper end face of the bearing seat; a flat foil is arranged on the upper end face of the elastic foil; wall breaking bulges are arranged on the elastic foils. The invention has the main advantages that the structure is simple, the manufacturing is convenient, and the wall-breaking raised elastic foil is formed through one-time stamping processing; the wall-broken protrusions are evenly arranged on the elastic foil in the circumferential direction or in the radial direction or in a staggered mode, so that the bearing has larger bearing capacity and better bearing uniformity. And the bearing capacity and rigidity of the bearing can be adjusted by changing the size, shape, opening direction and arrangement mode of the wall-breaking bulges, so that the use requirements under different conditions are further met.
Description
technical field [0001] The invention belongs to the field of dynamic pressure gas bearings in high-speed rotating machines, and in particular relates to a foil dynamic pressure gas thrust bearing with a broken wall convex type foil. Background technique [0002] Bearings are used to support the rotor system and are key components of rotating machinery. Their performance has a direct impact on the operating quality of the rotating system. The foil dynamic pressure gas uses ambient gas as a lubricating medium, and forms a dynamic pressure gas film between the rotor and the top flat foil, thereby generating bearing capacity. It has the advantages of no oil, micro-vibration, low friction, high speed, good environmental adaptability and long life, as well as good impact resistance and strong adaptability, which can ensure the stable operation of the spindle at high speed. It has been widely used in high-speed rotating machinery such as turbo expanders, centrifugal fans and centr...
Claims
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IPC IPC(8): F16C17/08F16C17/04F16C33/02F16C35/02
CPCF16C17/08F16C17/042F16C33/02F16C35/02
Inventor 杨山举王琪化文灿陈雨张惠铭
Owner 启承悬浮科技(西安)有限公司