Rolling supporting structure of fan with oil-retaining bearing structure

Abstract

The utility model discloses a rolling support structure of a fan with an oil bearing structure, which comprises a mounting bottom plate, a rolling support mechanism is mounted on the inner side of the middle of the mounting bottom plate, the rolling support mechanism comprises a bearing sleeve, the bearing sleeve is fixedly connected with the mounting bottom plate, a plurality of limit grooves are arranged on the inner wall of the bearing sleeve, and the limit grooves are fixedly connected with the mounting bottom plate. The inner side of the limiting groove is provided with anti-deviation strips, the inner sides of the multiple anti-deviation strips are provided with an oil-retaining bearing body, the bottom end of the oil-retaining bearing body is provided with a clamping gasket, and the upper end face of the oil-retaining bearing body is provided with an oil seal gasket; a rotating shaft is rotationally connected to the inner side of the oil bearing body, an iron core winding is fixedly installed on the outer side of the upper end of the bearing sleeve, and a magnetic ring is rotationally connected to the outer side of the iron core winding. The oil film gap is formed between the oil bearing and the fan rotating shaft, friction is effectively avoided through oil film connection in the gap, the rotating speed of the fan can be increased, and the service life of the oil bearing can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a rolling support structure of a fan with an oil-containing bearing structure. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine and is widely used in ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings. Among them, the sweeper fan structure uses oil-containing bearings made of iron-copper based powder metallurgy technology as moving support parts. The oil-containing bearings are filled with lubricating oil in the non-operating state. During operation, the shaft rotation generates heat due to friction, and the thermal expansion of the bearing reduces the pores, causing the lubricating oil to overflow and form an oil film.

[0003] When the existing fan is rolled supported by an oil-containing bearing, the friction of the fan shaft easily causes the oil-containing bearing to deflect, and the continuous friction affects the life of the bearing; therefore, it does not meet the existing needs. In this regard, we propose a rolling support structure for a fan with an oil-containing bearing structure. Utility Model Content

[0004] The purpose of the utility model is to provide a rolling support structure for a fan with an oil-containing bearing structure, so as to solve the problems proposed in the above background technology that when the existing fan is rolling supported by the oil-containing bearing, the oil-containing bearing is easily deflected due to the friction of the fan shaft, and the continuous friction affects the life of the bearing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rolling support structure of a fan with an oil-containing bearing structure, comprising a mounting base plate, a rolling support mechanism is installed on the inner side of the middle part of the mounting base plate, the rolling support mechanism comprises a bearing sleeve, the bearing sleeve is fixedly connected to the mounting base plate, a plurality of limiting grooves are provided on the inner wall of the bearing sleeve, an anti-deflection strip is installed on the inner side of the limiting groove, an oil-containing bearing body is installed on the inner side of the plurality of anti-deflection strips, a positioning gasket is installed on the bottom end of the oil-containing bearing body, and an oil seal gasket is installed on the upper end surface of the oil-containing bearing body;

[0006] The inner side of the oil-containing bearing body is rotatably connected with a rotating shaft, the outer side of the upper end of the bearing sleeve is fixedly installed with an iron core winding, the outer side of the iron core winding is rotatably connected with a magnetic ring, the outer side of the magnetic ring is fixedly installed with a metal installation box, and the inner wall in the middle of the metal installation box is fixedly installed with a magnetic suction sheet.

[0007] Preferably, an impeller lower cover is installed on the outer side of the upper end of the rotating shaft, an impeller upper cover is fixedly installed on the upper end surface of the impeller lower cover, a first outer shell is rotatably connected to the outer side of the impeller upper cover, a second outer shell is fixedly installed on the lower end surface of the first outer shell, and the second outer shell is fixedly connected to the mounting base plate.

[0008] Preferably, an air inlet is provided in the middle of the upper end surface of the first outer shell, an air outlet is provided on one side of the first outer shell and the second outer shell, and the rotation direction of the impeller upper cover, the impeller lower cover and the rotating shaft is clockwise.

[0009] Preferably, the bottom end of the rotating shaft passes through the impeller lower cover and the metal mounting box and is plugged into the inner side of the oil-containing bearing body. A groove is provided at the bottom end of the rotating shaft, and the positioning gasket is arranged on the inner side of the groove.

[0010] Preferably, a plurality of oil holes are provided inside the oil-containing bearing body, an oil film gap is formed between the oil-containing bearing body and the rotating shaft, and the width dimensions of the oil film gap at the upper and lower ends are smaller than the width dimension of the middle part.

[0011] Preferably, the plurality of anti-deflection strips are evenly arranged in a circle relative to the axis of the bearing sleeve, the bearing sleeve is connected to the oil-containing bearing body through the bearing sleeve, and the oil seal gasket is fixedly connected to the bearing sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model positions the oil-containing bearing body by the bearing sleeve through the oil seal gasket, the positioning gasket and the anti-deflection strip, so that the oil-containing bearing body can support the rotation of the shaft. At the same time, a plurality of oil holes are arranged inside the oil-containing bearing body, and an oil film gap is arranged between the oil-containing bearing body and the shaft. When the shaft rotates, the lubricating oil in the oil hole flows out and forms an oil film in the oil film gap, which effectively reduces the friction of the oil-containing bearing body during the rotation of the shaft, and realizes the high-speed rotation of the shaft;

[0014] 2. The utility model reduces the contact degree between the oil-containing bearing body and the rotating shaft by making the width dimensions of the upper and lower ends of the oil film gap smaller than the width dimension of the middle, and the magnetic attraction sheet and the upper end of the bearing sleeve are magnetically attracted to each other, thereby preventing the axial sliding of the rotating shaft caused by the centrifugal force generated when the impeller upper cover and the impeller lower cover drive the rotating shaft to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model as a whole;

[0016] Figure 2 This is a schematic diagram of the installation structure of the rolling support mechanism of the utility model;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of a partial structural schematic diagram of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the oil-containing bearing main body of the utility model.

[0019] In the figure: 1. first outer shell; 2. second outer shell; 3. impeller upper cover; 4. impeller lower cover; 5. rotating shaft; 6. metal mounting box; 7. magnetic sheet; 8. magnetic ring; 9. core winding; 10. bearing sleeve; 11. oil seal gasket; 12. oil-containing bearing body; 13. retaining gasket; 14. mounting base plate; 15. limiting groove; 16. anti-deflection strip. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figures 1 to 4 The utility model provides an embodiment: a rolling support structure of a fan with an oil-containing bearing structure, including a mounting base plate 14, a rolling support mechanism is installed on the inner side of the middle part of the mounting base plate 14, the rolling support mechanism includes a bearing sleeve 10, the bearing sleeve 10 is fixedly connected to the mounting base plate 14, the inner wall of the bearing sleeve 10 is provided with a plurality of limiting grooves 15, the inner side of the limiting grooves 15 is provided with an anti-deflection strip 16, an oil-containing bearing body 12 is installed on the inner side of the plurality of anti-deflection strips 16, a positioning gasket 13 is installed at the bottom end of the oil-containing bearing body 12, an oil seal gasket 11 is installed on the upper end surface of the oil-containing bearing body 12, and the plurality of anti-deflection strips 16 are uniformly arranged in a circle relative to the axis of the bearing sleeve 10, the bearing sleeve 10 is connected to the oil-containing bearing body 12 through the bearing sleeve 10, the oil seal gasket 11 is fixedly connected to the bearing sleeve 10, and the rolling support mechanism can maintain the stability of the fan during operation and extend the service life of the oil-containing bearing body 12.

[0022] See also Figure 3 and Figure 4 The inner side of the oil-containing bearing body 12 is rotatably connected with the rotating shaft 5, the bottom end of the rotating shaft 5 is provided with a groove, and the positioning gasket 13 is arranged on the inner side of the groove. A plurality of oil holes are provided inside the oil-containing bearing body 12, and an oil film gap is formed between the oil-containing bearing body 12 and the rotating shaft 5. The width dimensions of the oil film gap at the upper and lower ends are smaller than the width dimension in the middle, thereby reducing the contact degree between the oil-containing bearing body 12 and the rotating shaft 5.

[0023] See also Figure 1An iron core winding 9 is fixedly installed on the outer side of the upper end of the bearing sleeve 10, and a magnetic ring 8 is rotatably connected to the outer side of the iron core winding 9. A metal mounting box 6 is fixedly installed on the outer side of the magnetic ring 8, and a magnetic attraction sheet 7 is fixedly installed on the inner wall of the middle part of the metal mounting box 6. The magnetic attraction sheet 7 and the upper end of the bearing sleeve 10 are magnetically attracted to each other, and then the magnetic attraction sheet 7 can prevent the axial sliding of the rotating shaft 5 caused by the centrifugal force generated when the impeller upper cover 3 and the impeller lower cover 4 drive the rotating shaft 5 to rotate.

[0024] See also Figure 1 and Figure 2 The outer side of the upper end of the rotating shaft 5 is installed with an impeller lower cover 4, the bottom end of the rotating shaft 5 passes through the impeller lower cover 4 and the metal mounting box 6 and is plugged into the inner side of the oil-containing bearing body 12, the upper end surface of the impeller lower cover 4 is fixedly installed with an impeller upper cover 3, the outer side of the impeller upper cover 3 is rotatably connected with the first outer shell 1, the lower end surface of the first outer shell 1 is fixedly installed with the second outer shell 2, the second outer shell 2 is fixedly connected with the mounting base plate 14, the middle part of the upper end surface of the first outer shell 1 is provided with an air inlet, and one side of the first outer shell 1 and the second outer shell 2 is provided with an air outlet, the impeller upper cover 3, the impeller lower cover 4 and the rotating shaft 5 are rotated in a clockwise direction, and the metal mounting box 6 synchronously drives the rotating shaft 5 and the impeller upper cover 3 to rotate through the impeller lower cover 4, and then the impeller upper cover 3 and the impeller lower cover 4 can extract and compress the airflow through the air inlet provided in the middle part of the first outer shell 1 and discharge it directionally through the air outlet provided on one side of the first outer shell 1 and the second outer shell 2.

[0025] When in use, a rolling support mechanism is installed on the inner side of the installation base plate 14, and the power is turned on. By energizing the copper wire wound on the core winding 9, the magnetic ring 8 is driven by the magnetic field to rotate the metal installation box 6 clockwise, and then the metal installation box 6 drives the rotating shaft 5 and the impeller upper cover 3 to rotate synchronously through the impeller lower cover 4, and then the impeller upper cover 3 and the impeller lower cover 4 can extract and compress the airflow through the air inlet provided in the middle of the first outer shell 1 and discharge it directionally through the air outlet provided on one side of the first outer shell 1 and the second outer shell 2;

[0026] The bearing sleeve 10 positions the oil-containing bearing body 12 through the oil seal gasket 11, the positioning gasket 13 and the anti-deflection strip 16, so that the oil-containing bearing body 12 can support the rotation of the rotating shaft 5. At the same time, a plurality of oil holes are arranged inside the oil-containing bearing body 12, and an oil film gap is arranged between the oil-containing bearing body 12 and the rotating shaft 5. When the rotating shaft 5 rotates, the lubricating oil in the oil hole flows out and forms an oil film in the oil film gap, which effectively reduces the friction of the oil-containing bearing body 12 during the rotation of the rotating shaft 5, and realizes the high-speed rotation of the rotating shaft 5.

[0027] Moreover, the width dimensions of the upper and lower ends of the oil film gap are smaller than the width dimension in the middle, thereby reducing the contact degree between the oil-containing bearing body 12 and the rotating shaft 5. A magnetic attraction sheet 7 is fixed to the inner wall in the middle of the metal mounting box 6. The magnetic attraction sheet 7 and the upper end of the bearing sleeve 10 are magnetically attracted to each other, thereby preventing the axial sliding of the rotating shaft 5 caused by the centrifugal force generated when the impeller upper cover 3 and the impeller lower cover 4 drive the rotating shaft 5 to rotate.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rolling support structure of a fan having an oil-containing bearing structure, comprising a mounting base plate (14), characterized in that: A rolling support mechanism is installed on the inner side of the middle part of the mounting base plate (14), and the rolling support mechanism comprises a bearing sleeve (10). The bearing sleeve (10) is fixedly connected to the mounting base plate (14), and the inner wall of the bearing sleeve (10) is provided with a plurality of limit grooves (15). An anti-deflection strip (16) is installed on the inner side of the limit grooves (15). An oil-containing bearing body (12) is installed on the inner side of the plurality of anti-deflection strips (16). A locking gasket (13) is installed on the bottom end of the oil-containing bearing body (12), and an oil seal gasket (11) is installed on the upper end surface of the oil-containing bearing body (12); The inner side of the oil-containing bearing body (12) is rotatably connected to a rotating shaft (5), the outer side of the upper end of the bearing sleeve (10) is fixedly mounted with an iron core winding (9), the outer side of the iron core winding (9) is rotatably connected to a magnetic ring (8), the outer side of the magnetic ring (8) is fixedly mounted with a metal mounting box (6), and the inner wall of the middle part of the metal mounting box (6) is fixedly mounted with a magnetic attraction sheet (7).

2. The rolling support structure of a fan with an oil-containing bearing structure according to claim 1, characterized in that: An impeller lower cover (4) is mounted on the outer side of the upper end of the rotating shaft (5); an impeller upper cover (3) is fixedly mounted on the upper end surface of the impeller lower cover (4); a first outer shell (1) is rotatably connected to the outer side of the impeller upper cover (3); a second outer shell (2) is fixedly mounted on the lower end surface of the first outer shell (1); and the second outer shell (2) is fixedly connected to a mounting base plate (14).

3. The rolling support structure of a fan with an oil-containing bearing structure according to claim 2 is characterized in that: An air inlet is provided in the middle of the upper end surface of the first outer shell (1), an air outlet is provided on one side of the first outer shell (1) and the second outer shell (2), and the rotation direction of the impeller upper cover (3), the impeller lower cover (4) and the rotating shaft (5) is clockwise.

4. The rolling support structure of a fan with an oil-containing bearing structure according to claim 3 is characterized in that: The bottom end of the rotating shaft (5) passes through the impeller lower cover (4) and the metal mounting box (6) and is plugged into the inner side of the oil-containing bearing body (12). A groove is provided at the bottom end of the rotating shaft (5), and the locking gasket (13) is arranged on the inner side of the groove.

5. The rolling support structure of a fan with an oil-containing bearing structure according to claim 1, characterized in that: A plurality of oil holes are provided inside the oil-containing bearing body (12), and an oil film gap is formed between the oil-containing bearing body (12) and the rotating shaft (5), wherein the width dimensions of the oil film gap at the upper and lower ends are smaller than the width dimension of the middle portion.

6. The rolling support structure of a fan with an oil-containing bearing structure according to claim 1, characterized in that: The plurality of anti-deflection strips (16) are evenly arranged in a circle relative to the axis of the bearing sleeve (10); the bearing sleeve (10) and the oil-containing bearing body (12) are connected via the bearing sleeve (10); and the oil seal gasket (11) is fixedly connected to the bearing sleeve (10).

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