A high-thrust air suspension thrust bearing for an air suspension compressor

Abstract

The present invention discloses a high-thrust air suspension thrust bearing for an air suspension compressor, comprising a rotor and two chucks, wherein the rotor has an inner ring body, an outer ring body, and a plurality of connecting columns connecting the outer circumferential side surface of the inner ring body and the inner circumferential side surface of the outer ring body, wherein the plurality of connecting columns are distributed in a ring array, and there is a gap between the connecting columns and the connecting columns are elliptical columns, and the inner ring body has a main shaft hole; a hole is opened in the middle of the two chucks to form an annular chuck, and the two chucks are separated on the front and back sides of the rotor, and the two chucks are connected by bolts, and the rotor does not contact the chucks when rotating, and the opening of the chuck is coaxial with the main shaft hole on the rotor. The high-thrust air suspension thrust bearing of the present invention is applied to a compressor, and in the case of medium thrust, since the wind receiving surface of the air suspension thrust bearing of the present invention is an arc surface, the force effect of the elliptical column is better than that of the traditional square column structure, and thus the air bearing of the present invention has a higher thrust than the traditional thrust bearing.

Description

Technical Field

[0001] The invention relates to an air bearing, in particular to a high-thrust air suspension thrust bearing for an air suspension compressor. Background Art

[0002] Air suspension radial bearing is a type of air bearing (also called air floating bearing). Air bearing refers to a sliding bearing that uses gas (usually air, but it may also be other gases) as a lubricant. Air is less viscous than oil, is resistant to high temperatures, and is pollution-free. Therefore, it can be used in high-speed machines, instruments, and radioactive devices, but its load capacity is lower than that of oil. Air bearings are divided into three categories: air static pressure bearings, air dynamic pressure bearings, and squeeze film bearings. In general industry, air static pressure bearings are widely used.

[0003] The principle of air suspension bearings: There is physical contact between the shaft and the bearing before starting. During startup, the shaft and the bearing move relative to each other to generate air pressure. When the shaft rotates, the air flow (speed energy) around the shaft is converted into pressure, causing the rotating shaft to rotate. When the shaft reaches a certain rotation speed (3000-5000RPM), the air pressure makes the shaft float and plays a lubricating role.

[0004] The inner ring and outer ring of the rotor of the thrust bearing of a conventional air suspension compressor are connected by a square column. The thrust generated by air entering the rotor surface is insufficient, which affects the speed of the rotor.

[0005] Therefore, the conventional air suspension compressor needs to be improved. Summary of the invention

[0006] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a high-thrust air suspension thrust bearing for an air suspension compressor.

[0007] In order to solve the above technical problems, the present invention is implemented by the following scheme: A high-thrust air suspension thrust bearing for an air suspension compressor of the present invention comprises:

[0008] The rotor comprises an inner ring body, an outer ring body and a plurality of connecting posts connecting the outer circumferential side surface of the inner ring body and the inner circumferential side surface of the outer ring body, wherein the plurality of connecting posts are arranged in a ring array, gaps are provided between the connecting posts and the connecting posts are elliptical columns, and the inner ring body has a main shaft hole;

[0009] Two chucks, with a hole in the middle forming an annular chuck, are located on the front and back sides of the rotor and are connected by bolts. The rotor does not contact the chucks when rotating, and the opening of the chuck is coaxial with the main shaft hole on the rotor.

[0010] Furthermore, the chuck has an outer circumferential ring array with outwardly protruding columns, and through holes are provided on the columns. The columns on the two chucks are opposite to each other and are fixed by bolts and nuts.

[0011] Furthermore, the chuck has a surface opposite to the rotor divided into a plurality of sector grooves by prismatic radial strips.

[0012] Furthermore, the two end portions of the main shaft hole protrude outward to form a circular ring-shaped platform.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the high-thrust air suspension thrust bearing of the present invention is applied to a compressor. Under medium thrust conditions, since the wind-receiving surface of the air suspension thrust bearing of the present invention is an arc surface, the force-bearing effect of the elliptical column is better than that of the traditional square column structure, and thus the air bearing of the present invention has a higher thrust than that of the traditional thrust bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the installation structure of the high-thrust air suspension thrust bearing of the present invention.

[0015] Figure 2 It is a schematic structural diagram of the rotor of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the chuck of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more explicit definition of the protection scope of the present invention. Obviously, the embodiments described in the present invention are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Embodiment 1: The specific structure of the present invention is as follows:

[0022] Please refer to the attached Figure 1-3 The invention discloses a high-thrust air suspension thrust bearing for an air suspension compressor, comprising:

[0023] The rotor 6 comprises an inner ring body 63, an outer ring body 62, and a plurality of connecting posts 61 connecting the outer circumferential side surface of the inner ring body 63 and the inner circumferential side surface of the outer ring body 62, wherein the plurality of connecting posts 61 are arranged in a ring array, there are gaps between the connecting posts 61 and the connecting posts 61 are elliptical cylinders, and the inner ring body 63 has a main shaft hole;

[0024] Two chucks 5 are provided with a hole in the middle to form an annular chuck. The two chucks 5 are located on the front and back sides of the rotor 6 and are connected by bolts. The rotor 6 does not contact the chucks 5 when rotating. The hole in the chuck 5 is coaxial with the main shaft hole on the rotor 6.

[0025] A preferred technical solution of the present invention is that the outer circumference of the chuck 5 is provided with outwardly protruding columns 52 in an array, and through holes are provided on the columns 52. The columns 52 on the two chucks 5 are opposite to each other and fixed by bolts 4 and nuts.

[0026] A preferred technical solution of the present invention is that the side of the chuck 5 opposite to the rotor 6 is divided into a plurality of sector grooves by prismatic radial strips 51 .

[0027] A preferred technical solution of the present invention is that the two end portions of the main shaft hole are convex outward to form a circular ring-shaped platform.

[0028] Embodiment 2:

[0029] like Figure 1-3As shown, the elliptical cylinder on the rotor 6 has both positive and negative wind-receiving surfaces that are arc surfaces. After air enters, its wind-receiving area is larger than that of a traditional rectangular surface, and thus the thrust received by the rotor of the present invention is greater than that received by a traditional air bearing.

[0030] The high-thrust air suspension thrust bearing of the present invention is applied to an air suspension compressor, thereby increasing the service life of the compressor.

[0031] In summary, the high-thrust air suspension thrust bearing of the present invention is applied to a compressor. Under medium thrust conditions, since the wind-receiving surface of the air suspension thrust bearing of the present invention is an arc surface, the force-bearing effect of the elliptical column is better than that of the traditional square column structure. Therefore, the air bearing of the present invention has a higher thrust than that of the traditional thrust bearing.

[0032] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-thrust air suspension thrust bearing for an air suspension compressor, characterized in that: include: A rotor (6) comprising an inner ring body (63), an outer ring body (62), and a plurality of connecting posts (61) connecting the outer circumferential side surface of the inner ring body (63) and the inner circumferential side surface of the outer ring body (62), wherein the plurality of connecting posts (61) are distributed in a ring array, gaps are provided between the connecting posts (61), the connecting posts (61) are elliptical cylinders, and the inner ring body (63) has a main shaft hole; Two chucks (5) with a hole in the middle to form an annular chuck. The two chucks (5) are located on the front and back sides of the rotor (6). The two chucks (5) are connected by bolts. The rotor (6) does not contact the chucks (5) when rotating. The hole in the chuck (5) is coaxial with the main shaft hole on the rotor (6); The chuck (5) has an outer circumferential ring array with outwardly protruding columns (52), and the columns (52) are provided with through holes. The columns (52) on the two chucks (5) are opposite to each other and fixed by bolts (4) and nuts. The chuck (5) has a surface opposite to the rotor (6) divided into a plurality of sector grooves by prismatic radial strips (51).

2. The high-thrust air suspension thrust bearing for an air suspension compressor according to claim 1 is characterized in that: The two end portions of the main shaft hole protrude outward to form a circular ring-shaped platform.

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