Combined bearing seat

Abstract

The utility model relates to the technical field of bearing seats, and discloses a combined bearing seat which comprises a base, an upper cover is arranged on the base in a covering mode, the upper cover and the base are connected through a plurality of screws, two bearings are jointly installed between the base and the upper cover, the two bearings are jointly connected with a shaft, and the shaft is connected with a motor. An air inlet and an air outlet are formed in each of the base and the upper cover, an air injection device is arranged in each of the base and the upper cover, the air injection devices are communicated with the air inlets, an extrusion ring is mounted on the shaft, and the extrusion ring drives the air injection devices to suck and inject air. And through the cooperation of the extrusion ring and the air injection device, the air circulation at the outer ring of the bearing is enhanced, the heat dissipation performance is improved, and the wear of the bearing is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing seats, and more specifically, to a combined bearing seat. Background Art

[0002] In various mechanical equipment, as a key component for supporting shafts and bearings, the performance of the bearing seat directly affects the running stability and service life of the equipment. The traditional bearing seat structure mainly includes a fixed seat, a bearing, and a connecting piece, which are used to support the rotating shaft and transmit loads.

[0003] The existing combined bearing seat is usually set as a two-half ring structure, which can hold the bearing and the shaft tightly from both sides and is convenient to install. However, to ensure the connection stability, the bearing is wrapped in the bearing seat, making it difficult for the bearing to dissipate heat. During long-term use, the wear is likely to be aggravated. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a combined bearing seat with good heat dissipation.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A combined bearing seat, including a base, an upper cover is covered on the base, the upper cover and the base are connected by a plurality of screws, two bearings are jointly installed between the base and the upper cover, a shaft is jointly connected to the two bearings, air inlets and air outlets are opened on both the base and the upper cover, jet devices are arranged in both the base and the upper cover, the jet devices are communicated with the air inlets, an extrusion ring is installed on the shaft, and the extrusion ring drives the jet devices to inhale and jet air.

[0007] The utility model is further set as: the jet device includes an elastic airbag, an air suction port and a plurality of jet ports are opened on the elastic airbag, the air suction port is communicated with the air inlet, the jet ports face the space formed by the base and the upper cover, a check valve I is arranged in the jet port, the flow-through direction of the check valve I faces away from the elastic airbag side, a check valve II is arranged in the air suction port, and the flow-through direction of the check valve II faces into the elastic airbag.

[0008] The utility model is further set as: the outer circumferential of the extrusion ring does not contact with the elastic airbag, a plurality of extrusion blocks are symmetrically arranged on the outer circumferential of the extrusion ring, and the extrusion blocks can extrude the elastic airbag.

[0009] The utility model is further set as: ports are arranged at both ends of the upper cover, two clamping blocks are arranged at intervals inside the ports, the clamping blocks are in a semi-circular shape, the cross-section of the clamping block is in an "L" shape, the two clamping blocks are arranged facing each other, and the two ends of the outer ring of the bearing are respectively clamped with the two clamping blocks.

[0010] The present utility model is further configured such that: a cavity is jointly formed among the two clamping blocks, the port and the bearing, and the exhaust port penetrates through the cavity.

[0011] The present utility model is further configured such that: base ports are correspondingly arranged on both sides of the base, and the base ports have the same structure as the port.

[0012] The advantages of the present utility model are:

[0013] Jetting devices are arranged both in the base and the upper cover, and an extrusion ring is installed on the shaft. When the shaft rotates, the extrusion ring repeatedly extrudes and relaxes the elastic airbag of the jetting device. Check valve two and check valve one are respectively installed on the air inlet and the air jet outlet of the elastic airbag. When the elastic airbag is extruded, check valve one opens, and the air in the airbag is discharged into the space between the base and the upper cover. When the elastic airbag is released, the shape of the airbag resets, and air is inhaled from the outside through check valve two, so that the air between the base and the upper cover is extruded and finally discharged through the exhaust port. When the gas is discharged, it passes through the bearing, strengthening the air circulation at the outer ring of the bearing, enhancing heat dissipation, and thus reducing the wear of the bearing. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 is along Figure 1 the A-A line section shown;

[0016] Figure 3 is along Figure 1 the B-B line section shown;

[0017] Figure 4 is Figure 2 the enlarged view of part C shown;

[0018] Figure 5 is Figure 3 the enlarged view of part D shown;

[0019] In the figure: 1. Base; 2. Upper cover; 21. Port; 22. Clamping block; 23. Cavity; 3. Bearing; 4. Screw; 5. Air inlet; 6. Jetting device; 61. Elastic airbag; 62. Air jet outlet; 63. Air inlet; 64. Check valve one; 65. Check valve two; 7. Extrusion ring; 71. Extrusion block; 8. Shaft; 9. Exhaust port. Detailed Embodiment

[0020] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0022] In the present utility model, unless otherwise stated, the orientations such as "upper" and "lower" are generally in reference to the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for ease of understanding and description, "left" and "right" are generally in reference to the left and right shown in the drawings; "inner" and "outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms are not used to limit the present utility model.

[0023] Please refer to Figures 1-5 , the present utility model provides the following technical solutions:

[0024] The combined bearing seat includes a base 1, an upper cover 2 is covered on the base 1, the upper cover 2 and the base 1 are connected by a plurality of screws 4, two bearings 3 are jointly installed between the base 1 and the upper cover 2, a shaft 8 is jointly connected to the two bearings 3, air inlets 5 and exhaust ports 9 are provided on both the base 1 and the upper cover 2, a jet device 6 is arranged in both the base 1 and the upper cover 2, the jet device 6 is communicated with the air inlet 5, an extrusion ring 7 is installed on the shaft 8, when the shaft 8 rotates, the extrusion ring 7 repeatedly squeezes and releases the jet device 6, so that the jet device 6 discharges air between the base 1 and the upper cover 2 and draws air from the external environment. When the jet device 6 draws air from the outside, it squeezes the gas between the base 1 and the upper cover 2, thereby pushing the air to discharge from the exhaust port 9 of the bearing seat, promoting the air circulation inside the bearing seat and improving the heat dissipation effect of the internal structure of the bearing seat.

[0025] The jet device 6 includes an elastic airbag 61, an air suction port 63 and a plurality of jet ports 62 are provided on the elastic airbag 61, the air suction port 63 is communicated with the air inlet 5 and can draw air from the external environment, a check valve II 65 is arranged in the air suction port 63, and the flow direction of the check valve II 65 is from the external environment to the inside of the elastic airbag 61; the jet ports 62 face the space formed by the base 1 and the upper cover 2, a check valve I 64 is arranged in the jet ports 62, and the flow direction of the check valve I 64 is from the elastic airbag 61 to the space formed between the base 1 and the upper cover 2;

[0026] The outer circumferential of the extrusion ring 7 does not contact the elastic airbag 61. A number of extrusion blocks 71 are symmetrically arranged on the outer circumferential of the extrusion ring 7. The extrusion blocks 71 can extrude the elastic airbag 61. When the shaft 8 drives the extrusion ring 7 to rotate, the extrusion blocks 71 repeatedly extrude and release the elastic airbag 61. When the elastic airbag 61 is compressed, the air inside the elastic airbag 61 is extruded, and the air enters the space formed between the base 1 and the upper cover 2 through the one-way valve 64; when the elastic airbag 61 is released, the shape of the elastic airbag 61 is restored, and it absorbs air from the external environment through the one-way valve 65 for filling. When the elastic airbag 61 expands, it extrudes the air between the base 1 and the upper cover 2, and finally the air is discharged through the exhaust port 9, realizing the circulation of the air inside the bearing housing.

[0027] Both ends of the upper cover 2 are provided with ports 21. Two clamping blocks 22 are arranged at intervals inside the ports 21. The clamping blocks 22 are semi-circular, and the cross-section of the clamping blocks 22 is in an "L" shape. The two clamping blocks 22 are arranged facing each other. The two ends of the outer ring of the bearing 3 are respectively engaged with the two clamping blocks 22. The base ports corresponding to both sides of the base 1 have the same structure as the ports 21. During installation, the bearing 3 can be clamped between the two clamping blocks 22, and then the upper cover 2 is connected to the base 1, ensuring the axial position stability of the bearing 3 and without additional positioning, making the installation convenient.

[0028] A cavity 23 is jointly formed among the two clamping blocks 22, the ports 21 and the bearing 3. The exhaust port 9 penetrates through the cavity 23. When the gas is discharged through the exhaust port 9, it will enter the cavity 23, and the gas directly contacts the outer ring surface of the bearing 3 in the cavity 23, promoting the heat dissipation of the bearing.

[0029] Specifically, jet devices 6 are arranged inside both the base 1 and the upper cover 2, and an extrusion ring 7 is installed on the shaft 8. When the shaft 8 rotates, the extrusion ring 7 repeatedly extrudes and relaxes the elastic airbag 61 of the jet device 6. One-way valve 65 and one-way valve 64 are respectively installed on the air inlet 63 and the air jet port 62 of the elastic airbag 61. When the elastic airbag 61 is extruded, the one-way valve 64 opens, and the air in the elastic airbag 61 is discharged into the space between the base 1 and the upper cover 2. When the elastic airbag 61 is released, the shape of the elastic airbag 61 is restored, and it inhales air from the outside through the one-way valve 65, so that the air between the base 1 and the upper cover 2 is extruded and finally discharged through the exhaust port 9. When the gas is discharged, it passes through the bearing 3, strengthening the air circulation at the outer ring of the bearing 3 and enhancing heat dissipation, thereby reducing the wear of the bearing 3.

[0030] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0031] 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 forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] It should be noted that the terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein.

[0033] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A combined bearing seat, comprising a base (1), characterized in that: The base (1) is covered with an upper cover (2), the upper cover (2) and the base (1) are connected by a plurality of screws (4), two bearings (3) are installed between the base (1) and the upper cover (2), the two bearings (3) are connected with a shaft (8), the base (1) and the upper cover (2) are both provided with an air inlet (5) and an air outlet (9), the base (1) and the upper cover (2) are both provided with an injection device (6), the injection device (6) is connected with the air inlet (5), the shaft (8) is provided with an extrusion ring (7), the extrusion ring (7) drives the injection device (6) to inhale and eject air.

2. The combined bearing seat according to claim 1, characterized in that: The jet device (6) comprises an elastic airbag (61), an air inlet (63) and a plurality of jet outlets (62) are provided on the elastic airbag (61), the air inlet (63) is connected to the air inlet (5), the jet outlet (62) faces the space formed by the base (1) and the upper cover (2), a one-way valve (64) is arranged in the jet outlet (62), and the flow direction of the one-way valve (64) faces the side away from the elastic airbag (61), and a one-way valve (65) is arranged in the air inlet (63), and the flow direction of the one-way valve (65) faces the inside of the elastic airbag (61).

3. The combined bearing seat according to claim 2, characterized in that: The outer circumference of the extrusion ring (7) does not contact the elastic airbag (61), and a plurality of extrusion blocks (71) are symmetrically arranged on the outer circumference of the extrusion ring (7), and the extrusion blocks (71) can extrude the elastic airbag (61).

4. The combined bearing seat according to claim 1, characterized in that: Ports (21) are provided at both ends of the upper cover (2), two clamping blocks (22) are arranged at intervals inside the ports (21), the clamping blocks (22) are semi-annular, and the cross section of the clamping blocks (22) is "L"-shaped. The two clamping blocks (22) are arranged facing each other, and the two ends of the outer ring of the bearing (3) are respectively engaged with the two clamping blocks (22).

5. The combined bearing seat according to claim 4, characterized in that: A cavity (23) is formed between the two clamping blocks (22), the port (21) and the bearing (3), and the exhaust port (9) passes through the cavity (23).

6. The combined bearing seat according to claim 5, characterized in that: Base ports are correspondingly arranged on both sides of the base (1), and the base ports have the same structure as the port (21).

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