Foil thrust air bearing imitating whale stomatal muscle structure

Abstract

A foil thrust air bearing imitating a whale stomatal muscle structure comprises a bearing base, a whale stomatal muscle-like bump foil structure and a flat foil, and the bearing base comprises an L-shaped mounting groove, an air supply hole I, an air supply hole II, a boss and a magnetic strip. The whale stomatal muscle-like bump foil structure comprises a magnetic attraction base, a bump foil structure air inlet guide pipe and a bump foil body, the flat foil comprises a foil plane and a foil buckle, and the whale stomatal muscle-like bump foil structure is characterized in that the L-shaped mounting grooves and the bosses are alternately and uniformly distributed on the bearing base in the circumferential direction, the air supply holes I are uniformly distributed on the bosses in the circumferential direction, and the air supply holes II are communicated with the bosses in the circumferential direction. The air supply holes II are evenly distributed in the two sides of the air supply hole I in the radial direction, the magnetic strips are located at outlets of the air supply holes II, the whale stomatal muscle-like bump foil structure is located on the bearing base, and the bump foil structure air inlet guide pipes are installed in the air supply holes II. The magnetic attraction base is located at the bottom end of the bump foil structure similar to the whale stomatal muscle and matched with the magnetic strip, the flat foil is located on the bump foil body, and the foil buckle is installed in the L-shaped installation groove.

Description

Technical field:

[0001] The invention belongs to the field of gas bearings, and in particular relates to a foil thrust air bearing imitating the muscle structure of a whale's blowhole. Background technology:

[0002] As a key component, foil thrust air bearings are widely used in various precision measuring instruments and confidential equipment. They can bear axial loads and ensure stable support and operation of the shaft system. However, the traditional type has limitations. Its air supply system is fixed and difficult to adapt to different working conditions. The stability of the air film is affected. The bearing capacity is limited, which restricts the development of precision equipment to high loads.

[0003] Bionics provides new ideas for solving problems. The wave foil structure of whale-like blowhole muscles is made of rubber material, and its expansion degree can be adjusted by controlling the air intake. Combining it with a foil thrust bearing is expected to accurately adjust the air supply, optimize the air film, improve the load-bearing capacity, expand the scope of use of foil thrust bearings, and meet the needs of modern industry. Summary of the invention:

[0004] The purpose of the present invention is to provide a foil thrust air-floating bearing that imitates the muscle structure of a whale's blowhole. By controlling the expansion degree of the foil body, the stiffness of the foil body is controlled by using the characteristics of the muscle structure of a whale's blowhole, so as to effectively cope with high-load impacts and expand the scenarios that the foil thrust bearing can adapt to. At the same time, by controlling the expansion of two matching foil bodies, it is possible to partially or completely prevent external high-pressure gas from entering the bearing gap, and realize independent control of the air supply of each air supply hole, so that the foil thrust bearing can adapt to more different air supply scenarios.

[0005] In order to achieve the purpose of the present invention, the following technical scheme is proposed: a foil thrust air-floating bearing imitating the structure of whale blowhole muscles, comprising: a bearing base (1), a wave foil structure (2) similar to the blowhole muscles of whales, and a flat foil (3), wherein the bearing base (1) comprises an "L"-shaped mounting groove (1-1), an air supply hole I (1-2), an air supply hole II (1-3), a boss (1-4) and a magnetic strip (1-5), the wave foil structure (2) similar to the blowhole muscles of whales comprises a magnetic suction base (2-1), a wave foil structure air intake duct (2-2) and a wave foil body (2-3), and the flat foil (3) comprises a foil plane (3-1) and a foil buckle (3-2), characterized in that: the "L"-shaped mounting groove (1-1) and the boss (1-4) The air supply holes I (1-2) are evenly distributed on the bearing base (1) in an alternating manner in the circumferential direction, the air supply holes I (1-2) are evenly distributed on the boss (1-4) in the circumferential direction, the air supply holes II (1-3) are evenly distributed on both sides of the air supply holes I (1-2) in the radial direction, the magnetic strip (1-5) is located at the outlet of the air supply holes II (1-3), the wave foil structure (2) similar to the whale's blowhole muscle is located on the bearing base (1), the wave foil structure air intake duct (2-2) is installed in the air supply hole II (1-3), the magnetic base (2-1) is located at the bottom end of the wave foil structure (2) similar to the whale's blowhole muscle and cooperates with the magnetic strip (1-5), the flat foil (3) is located on the wave foil body (2-3), and the foil buckle (3-2) is installed in the "L"-shaped installation groove (1-1).

[0006] Furthermore, the bearing base (1) and the flat foil (3) are made of alloy materials, the corrugated foil structure (2) similar to the blowhole muscle of a whale is made of rubber material, and the magnetic strip (1-5) and the magnetic base (2-1) are made of magnetic material.

[0007] Furthermore, the corrugated foil body (2-3) is in the shape of a yin-yang fish, and in the expanded state, the two corrugated foil bodies are tightly matched in a smooth curve to prevent the air from escaping from the air supply hole I (1-2).

[0008] Features of the present invention:

[0009] The present invention provides a foil thrust air bearing imitating the blowhole muscle structure of a whale, which innovatively draws on the effect of the blowhole muscle part of the whale on the airway, and combines the yin-yang fish shape in traditional culture to construct a unique airway network inside the bearing. By controlling the gas flow in the wave foil structure air intake duct (2-2), the expansion degree of the wave foil body (2-3) can be effectively controlled to change its stiffness. By simultaneously controlling the expansion of two matching wave foil bodies (2-3), the gas flow at the air supply hole I (1-2) can be accurately regulated to control the air film thickness, and the gas flow at each air supply hole I (1-2) can be independently controlled, so that the foil thrust air bearing has a stable air film thickness. Compared with the traditional foil thrust bearing, it can dynamically adjust the load-bearing performance according to the real-time working conditions, improve the stability and adaptability of the bearing, and expand the applicable scenarios of the foil thrust bearing. Description of the drawings:

[0010] Figure 1 It is a schematic diagram of the present invention;

[0011] Figure 2 An exploded view of the present invention;

[0012] Figure 3 The bearing base of the present invention;

[0013] Figure 4 It is a partial enlarged view of the bearing base of the present invention;

[0014] Figure 5 The corrugated foil structure of the whale-like blowhole muscle of the present invention;

[0015] Figure 6 A flat foil of the present invention;

[0016] Figure 7 It is a top view of the bump foil body (unexpanded state) of the present invention after being matched with the bearing base;

[0017] Figure 8 It is a top view of the expanded bump foil of the present invention.

[0018] 1 bearing base, 2 wave foil structure of whale blowhole muscle, 3 flat foil, 1-1 "L" shaped mounting groove, 1-2 air supply hole I, 1-3 air supply hole II, 1-4 boss, 1-5 magnetic strip, 2-1 magnetic base, 2-2 wave foil structure air intake duct, 2-3 wave foil body, 3-1 foil plane, 3-2 foil buckle. Specific implementation method:

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, wherein the illustrative embodiments and descriptions are only used to explain the present invention but are not intended to be improper limitations of the present invention.

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] For ease of description, spatially relative terms such as "under", "below", "on the lower surface of", "below", "lower end", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "under other devices or structures" or "under other devices or structures" will be positioned as "above other devices or structures" or "above other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein are interpreted accordingly.

[0023] Reference Figures 1 to 8 .

[0024] A foil thrust air-floating bearing imitating the structure of a whale's blowhole muscle, comprising: a bearing base (1), a wave foil structure (2) similar to the blowhole muscle of a whale, and a flat foil (3), wherein the bearing base (1) comprises an "L"-shaped mounting groove (1-1), an air supply hole I (1-2), an air supply hole II (1-3), a boss (1-4) and a magnetic strip (1-5), the wave foil structure (2) similar to the blowhole muscle of a whale comprises a magnetic suction base (2-1), a wave foil structure air intake duct (2-2) and a wave foil body (2-3), and the flat foil (3) comprises a foil plane (3-1) and a foil buckle (3-2), and is characterized in that: the "L"-shaped mounting groove (1-1) and the boss (1-4) are evenly distributed in the bearing base in an alternating manner in the circumferential direction. On the base (1), the air supply holes I (1-2) are evenly distributed on the boss (1-4) in the circumferential direction, the air supply holes II (1-3) are evenly distributed on both sides of the air supply holes I (1-2) in the radial direction, the magnetic strip (1-5) is located at the outlet of the air supply holes II (1-3), the wave foil structure (2) similar to the whale blowhole muscle is located on the bearing base (1), the wave foil structure air intake duct (2-2) is installed in the air supply hole II (1-3), the magnetic base (2-1) is located at the bottom of the wave foil structure (2) similar to the whale blowhole muscle and cooperates with the magnetic strip (1-5), the flat foil (3) is located on the wave foil body (2-3), and the foil buckle (3-2) is installed in the "L"-shaped installation groove (1-1).

[0025] Furthermore, the bearing base (1) and the flat foil (3) are made of alloy materials, the corrugated foil structure (2) similar to the blowhole muscle of a whale is made of rubber material, and the magnetic strip (1-5) and the magnetic base (2-1) are made of magnetic material.

[0026] Furthermore, the corrugated foil body (2-3) is in the shape of a yin-yang fish, and in the expanded state, the two corrugated foil bodies are tightly matched in a smooth curve to prevent the air from escaping from the air supply hole I (1-2).

[0027] Compared with the foil thrust air bearing, the foil thrust air bearing imitating the whale's blowhole muscle structure can dynamically adjust the air film thickness of the bearing according to the real-time working conditions, so that the foil thrust bearing has good load-bearing performance and stability.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A foil thrust air bearing imitating the muscle structure of a whale's blowhole, comprising: Bearings A base (1), a wave foil structure (2) similar to the blowhole muscle of a whale, and a flat foil (3), wherein the bearing base (1) comprises an "L"-shaped mounting groove (1-1), an air supply hole I (1-2), an air supply hole II (1-3), a boss (1-4) and a magnetic strip (1-5), the wave foil structure (2) similar to the blowhole muscle of a whale comprises a magnetic suction base (2-1), a wave foil structure air intake duct (2-2) and a wave foil body (2-3), and the flat foil (3) comprises a foil plane (3-1) and a foil buckle (3-2), and is characterized in that: the "L"-shaped mounting groove (1-1) and the boss (1-4) are evenly distributed on the bearing base (1) in an alternating manner in the circumferential direction, and the air supply hole I (1-2) is evenly distributed on the boss (1-4) in the circumferential direction, the air supply hole II (1-3) is evenly distributed on both sides of the air supply hole I (1-2) in the radial direction, the magnetic strip (1-5) is located at the outlet of the air supply hole II (1-3), the wave foil structure (2) of the whale-like blowhole muscle is located on the bearing base (1), the wave foil structure air intake duct (2-2) is installed in the air supply hole II (1-3), the magnetic base (2-1) is located at the bottom end of the wave foil structure (2) of the whale-like blowhole muscle and cooperates with the magnetic strip (1-5), the flat foil (3) is located on the wave foil body (2-3), and the foil buckle (3-2) is installed in the "L"-shaped installation groove (1-1).

2. The foil thrust air bearing imitating the whale blowhole muscle structure according to claim 1, characterized in that: The bearing base (1) and the flat foil (3) are made of alloy materials, the corrugated foil structure (2) similar to the blowhole muscle of a whale is made of rubber material, and the magnetic strip (1-5) and the magnetic base (2-1) are made of magnetic materials.

3. The foil thrust air bearing imitating the whale blowhole muscle structure according to claim 1, characterized in that: The corrugated foil body (2-3) is in the shape of a yin-yang fish. In the expanded state, the two corrugated foil bodies are tightly matched with a smooth curve to prevent the air from escaping from the air supply hole I (1-2).

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