Self-maintenance bearing for asynchronous motor

Abstract

The utility model provides a self-maintenance bearing for an asynchronous motor, which comprises a mounting rack and an outer ring, and the outer ring is mounted on the inner side of the mounting rack. The bearing disclosed by the utility model has the advantages that the plurality of lubricating pieces are movably connected between the inner ring and the outer ring and are graphite blocks, so that the bearing can be self-lubricated in the running process. In the operation process of the bearing, the graphite particles can be gradually released from the graphite blocks and are uniformly distributed on the friction surface of the bearing. The graphite particles form a layer of stable solid lubricating film under the action of friction force. The lubricating film can effectively reduce the friction coefficient and reduce direct contact between the bearing and a shaft, so that friction and abrasion are reduced, and a stable lubricating effect can be kept in a high-temperature environment; even if a lubricating piece is abraded, an auxiliary piece continuously contacts with the surfaces of the inner ring and the outer ring, continuously releases graphite particles and continuously lubricates the interior of the bearing, so that the purposes of lasting self-lubrication and self-maintenance of the bearing are achieved, and the service life of the bearing is long.

Description

Technical Field

[0001] The utility model relates to the technical field of motor bearings, in particular to a self-maintaining bearing for an asynchronous motor. Background Art

[0002] Asynchronous motors are equipped with multiple bearings. In the prior art, self-maintaining and self-lubricating bearings can be used to install in asynchronous motors. Their notable feature is that they can provide lubrication during operation without the need for additional grease or oil-based lubricants. Therefore, such bearings are also called maintenance-free or grease-free bearings.

[0003] The working principle of self-lubricating bearings is to immerse lubricants into the sliding layer of the bearing. Depending on the application requirements (such as operating temperature), this lubricant can be liquid (oil) or solid (such as graphite, MoS2, lead, etc.).

[0004] In the prior art, there is a technical solution to install graphite blocks into bearings to achieve self-maintenance and self-lubrication. During the operation of the graphite blocks, graphite particles will gradually be released from the graphite blocks and evenly distributed on the friction surface of the bearings. These graphite particles form a stable solid lubricating film under the action of friction. However, the graphite blocks will gradually wear out. When the graphite blocks are worn to the point where they no longer contact the inner and outer ring surfaces of the bearings, the self-lubricating performance of the bearings will be greatly reduced, and they will not be durable and reliable enough. Therefore, a new self-maintaining bearing for asynchronous motors is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] Therefore, one purpose of the present invention is to provide a self-maintaining bearing for an asynchronous motor to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0007] In order to achieve the above-mentioned object, an embodiment of the utility model provides a self-maintaining bearing for an asynchronous motor, comprising a mounting frame and an outer ring, wherein the outer ring is mounted on the inner side of the mounting frame, and the inner side of the outer ring is provided with an inner ring;

[0008] A plurality of steel balls are movably connected between the outer ring and the inner ring, and a plurality of lubricating parts are movably connected between the outer ring and the inner ring;

[0009] The top and bottom surfaces of the lubricating part are both provided with grooves, the inner side of the groove is fixedly connected with an elastic part, the end of the elastic part is fixedly connected with a sub-part, and the sub-part is movably connected with the surface of the outer ring and the inner ring;

[0010] A dust cover is arranged between the outer ring and the inner ring.

[0011] Preferably, any of the above schemes is that the outer ring, inner ring, steel balls, lubricating parts and dust covers form a bearing structure, and the outer ring is embedded in the inner side of the mounting frame.

[0012] The above technical solution is adopted: the bearing itself is composed of an outer ring, an inner ring, a steel ball, and a dust cover. The newly added structures are: lubricating parts, grooves, elastic parts, and auxiliary parts.

[0013] Preferably, any of the above schemes is that the material of the steel ball is GCr15, and the material of the lubricating part is graphite.

[0014] Preferably, any of the above schemes is that at least four lubricating parts are provided, and the lubricating parts are arranged in a circumferential array about the axis of the inner ring.

[0015] Adopting the above technical solution: the bearing is installed inside the asynchronous motor, and its characteristics are self-lubrication, self-maintenance, long-lasting and reliable lubrication and long service life.

[0016] Preferably, in any of the above schemes, the lubricating member is located between two steel balls, and the elastic member is made of graphite.

[0017] Adopting the above technical solution: the core structure of the device is: lubricating parts, grooves, elastic parts, and auxiliary parts.

[0018] The core advantage of this device is that there are multiple lubricating parts in active connection between the inner ring and the outer ring, which are graphite blocks, so that the bearing can lubricate itself during operation, reduce wear and increase service life. During the operation of the bearing, graphite particles will gradually be released from the graphite blocks and evenly distributed on the friction surface of the bearing. Under the action of friction, these graphite particles form a stable solid lubricating film. This lubricating film can not only effectively reduce the friction coefficient and reduce the direct contact between the bearing and the shaft, thereby reducing friction and wear, but also maintain a stable lubrication effect in a high temperature environment.

[0019] At the same time, since graphite lubricating parts will be worn, in order to ensure their long-term, continuous and reliable lubrication, the structure of the lubricating parts is improved, a groove structure is designed, and elastic parts are fixedly connected on the inside, so that the auxiliary parts can continue to stick to the surfaces of the inner and outer rings. Even if the lubricating parts are worn, the auxiliary parts continue to contact the surfaces of the inner and outer rings, continuously release graphite particles, and continuously lubricate the inside of the bearing, thereby achieving the purpose of long-term self-lubrication and self-maintenance of the bearing and extending the service life of the bearing.

[0020] Preferably, in any of the above schemes, the material of the auxiliary component is graphite, and the shape of the auxiliary component is trapezoidal.

[0021] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0022] The self-maintaining bearing for the asynchronous motor is equipped with a plurality of lubricating parts, grooves, elastic parts and auxiliary parts, and a plurality of lubricating parts are movably connected between the inner ring and the outer ring. The lubricating parts are graphite blocks, so that the bearing can lubricate itself during operation, reduce wear and increase service life. During the operation of the bearing, graphite particles will gradually be released from the graphite block and evenly distributed on the friction surface of the bearing. Under the action of friction, these graphite particles form a stable solid lubricating film. This lubricating film can not only effectively reduce the friction coefficient and reduce the direct contact between the bearing and the shaft, thereby reducing friction and wear, but also maintain a stable lubrication effect in a high temperature environment.

[0023] At the same time, since graphite lubricating parts will be worn, in order to ensure their long-term, continuous and reliable lubrication, the structure of the lubricating parts is improved, a groove structure is designed, and elastic parts are fixedly connected on the inside, so that the auxiliary parts can continue to stick to the surfaces of the inner and outer rings. Even if the lubricating parts are worn, the auxiliary parts continue to contact the surfaces of the inner and outer rings, continuously release graphite particles, and continuously lubricate the inside of the bearing, thereby achieving the purpose of long-term self-lubrication and self-maintenance of the bearing and extending the service life of the bearing.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0027] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0028] Figure 3 It is a structural schematic diagram of the utility model from a third viewing angle;

[0029] Figure 4 It is a schematic diagram of the partial cross-sectional structure inside the utility model.

[0030] In the figure: 1-mounting frame, 2-outer ring, 3-inner ring, 4-steel ball, 5-lubricating part, 6-groove, 7-elastic part, 8-auxiliary part, 9-dust cover. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-4 As shown, the self-maintaining bearing for the asynchronous motor includes a mounting frame 1 and an outer ring 2. The outer ring 2 is mounted on the inner side of the mounting frame 1, and the inner side of the outer ring 2 is provided with an inner ring 3;

[0034] A plurality of steel balls 4 are movably connected between the outer ring 2 and the inner ring 3, and a plurality of lubricating parts 5 are movably connected between the outer ring 2 and the inner ring 3;

[0035] The top and bottom surfaces of the lubricating member 5 are both provided with grooves 6, the inner side of the groove 6 is fixedly connected with an elastic member 7, the end of the elastic member 7 is fixedly connected with a sub-member 8, and the sub-member 8 is movably connected with the surfaces of the outer ring 2 and the inner ring 3;

[0036] A dust cover 9 is provided between the outer ring 2 and the inner ring 3 .

[0037] Embodiment 1: The outer ring 2, the inner ring 3, the steel ball 4, the lubricating part 5, and the dust cover 9 constitute the bearing structure, and the outer ring 2 is embedded in the inner side of the mounting frame 1. The bearing itself is composed of the outer ring 2, the inner ring 3, the steel ball 4, and the dust cover 9. The newly added structure is: the lubricating part 5, the groove 6, the elastic part 7, and the auxiliary part 8. The material of the steel ball 4 is GCr15, and the material of the lubricating part 5 is graphite. At least four lubricating parts 5 are provided, and the lubricating parts 5 are arranged in a circular array about the axis of the inner ring 3. The bearing is installed inside the asynchronous motor, and its characteristics are self-lubrication, self-maintenance, long-lasting and reliable lubrication, and long service life.

[0038] Embodiment 2: The lubricating component 5 is located between two steel balls 4, and the elastic component 7 is made of graphite. The auxiliary component 8 is made of graphite, and the shape of the auxiliary component 8 is trapezoidal. Since the graphite lubricating component 5 will be worn, in order to ensure its long-term, continuous and reliable lubrication, the structure of the lubricating component 5 is improved, and a groove 6 structure is designed, and the elastic component 7 is fixedly connected to the inner side thereof, so that the auxiliary component 8 can continuously stick to the surface of the inner ring 3 and the outer ring 2. Even if the lubricating component 5 is worn, the auxiliary component 8 continues to contact the surface of the inner ring 3 and the outer ring 2, continuously releases graphite particles, and continuously lubricates the inside of the bearing, so as to achieve the purpose of long-term self-lubrication and self-maintenance of the bearing, and the bearing has a long service life.

[0039] The working principle of the utility model is as follows:

[0040] The bearing itself is composed of an outer ring 2, an inner ring 3, a steel ball 4, and a dust cover 9. The newly added structures are: a lubricating part 5, a groove 6, an elastic part 7, and a sub-part 8;

[0041] The bearing is mounted on the inner side of the mounting frame 1, and the lubricating parts 5 are arranged in a circular array around the axis of the inner ring 3. During the operation of the bearing, graphite particles are gradually released from the graphite block and evenly distributed on the friction surface of the bearing. These graphite particles form a stable solid lubricating film under the action of friction. This lubricating film can not only effectively reduce the friction coefficient and reduce the direct contact between the bearing and the shaft, thereby reducing friction and wear, but also maintain a stable lubrication effect in a high temperature environment.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] The self-maintaining bearing for the asynchronous motor is provided with a plurality of lubricating parts 5 movably connected between the inner ring 3 and the outer ring 2 through the matching arrangement of lubricating parts 5, grooves 6, elastic parts 7, and auxiliary parts 8. The lubricating parts 5 are graphite blocks, so that the bearing can lubricate itself during operation, reduce wear, and increase service life. During the operation of the bearing, graphite particles will gradually be released from the graphite blocks and evenly distributed on the friction surface of the bearing. These graphite particles form a stable solid lubricating film under the action of friction. This lubricating film can not only effectively reduce the friction coefficient and reduce the direct contact between the bearing and the shaft, thereby reducing friction and wear, but also maintain a stable lubrication effect in a high temperature environment.

[0044] At the same time, since the graphite lubricating part 5 will be worn, in order to ensure its long-term, continuous and reliable lubrication, the structure of the lubricating part 5 is improved, a groove 6 structure is designed, and an elastic part 7 is fixedly connected to the inside thereof, so that the auxiliary part 8 can continue to be close to the surface of the inner ring 3 and the outer ring 2. Even if the lubricating part 5 is worn, the auxiliary part 8 continues to contact the surface of the inner ring 3 and the outer ring 2, continuously releases graphite particles, and continuously lubricates the inside of the bearing, thereby achieving the purpose of long-term self-lubrication and self-maintenance of the bearing, and the bearing has a long service life.

Claims

1. A self-maintaining bearing for an asynchronous motor, characterized in that: The invention comprises a mounting frame (1) and an outer ring (2), wherein the outer ring (2) is mounted on the inner side of the mounting frame (1), and the inner ring (3) is arranged on the inner side of the outer ring (2); a plurality of steel balls (4) are movably connected between the outer ring (2) and the inner ring (3), and a plurality of lubricating parts (5) are movably connected between the outer ring (2) and the inner ring (3); The top and bottom surfaces of the lubricating member (5) are both provided with grooves (6), the inner side of the groove (6) is fixedly connected with an elastic member (7), the end of the elastic member (7) is fixedly connected with a sub-member (8), and the sub-member (8) is movably connected to the surfaces of the outer ring (2) and the inner ring (3); A dust cover (9) is provided between the outer ring (2) and the inner ring (3).

2. A self-maintaining bearing for an asynchronous motor according to claim 1, characterized in that: The outer ring (2), the inner ring (3), the steel ball (4), the lubricating element (5) and the dust cover (9) form a bearing structure, and the outer ring (2) is embedded in the inner side of the mounting frame (1).

3. A self-maintaining bearing for an asynchronous motor as claimed in claim 2, characterized in that: The material of the steel ball (4) is GCr15, and the material of the lubricating element (5) is graphite.

4. A self-maintaining bearing for an asynchronous motor as claimed in claim 3, characterized in that: At least four lubricating parts (5) are provided, and the lubricating parts (5) are arranged in a circular array about the axis of the inner ring (3).

5. A self-maintaining bearing for an asynchronous motor as claimed in claim 4, characterized in that: The lubricating component (5) is located between the two steel balls (4), and the elastic component (7) is made of graphite.

6. A self-maintaining bearing for an asynchronous motor as claimed in claim 5, characterized in that: The material of the auxiliary component (8) is graphite, and the shape of the auxiliary component (8) is trapezoidal.

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