Bearing assembly for fan

Abstract

The utility model provides a bearing assembly for a fan. Comprising a bearing box, a rotating shaft, two bearings and a sealing end cover, wherein a cavity of the bearing box is filled with lubricating oil; the rotating shaft is rotatably arranged in the bearing box; the two bearings are arranged between the rotating shaft and the bearing box; the bearing box is provided with a sealing end cover, the sealing gasket is arranged between the end face of the bearing box and the sealing end cover, the sealing structure is arranged between the sealing end cover and the rotating shaft, the discharging valve is arranged on the bearing box and used for discharging lubricating oil in the bearing box, and the connecting hole is formed in the bearing box. The fan is often used in the open air, so that the bearing assembly is also used in the open air, and rainwater is not easy to enter the bearing box through the second exhaust channel and the first exhaust channel in rainy days, so that lubricating oil in the bearing box is not easy to emulsify, and the use of the bearing assembly is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing components for fans, in particular to a bearing component for fans. Background Art

[0002] An existing bearing assembly for a fan is shown in the attached Figure 1 , 2 As shown: the bearing assembly includes a bearing box 1' with lubricating oil in its cavity, a rotating shaft 2' rotatably arranged in the bearing box 1', two bearings 3' arranged between the rotating shaft 2' and the bearing box 1', a sealing end cover 4' arranged on the end surface of the bearing box 1' and located outside the rotating shaft 2', a sealing gasket 5' arranged between the end surface of the bearing box 1' and the sealing end cover 4', a sealing structure 6' arranged between the sealing end cover 4' and the rotating shaft 2', a discharge valve 7' arranged on the bearing box 1' for discharging the lubricating oil in the bearing box 1', a connecting hole 8' opened on the bearing box 1' for the lubricating oil to enter the bearing box 1', and a screw 9' threadedly connected to the bearing box 1'. ' and located in the connecting hole 8', which is used to be separated from the bearing box 1' when the lubricating oil needs to enter the bearing box 1' through the connecting hole 8' and fixed to the bearing box 1' when the lubricating oil does not need to enter the bearing box 1' through the connecting hole 8'; a first exhaust channel 12' is opened on the screw rod 9' of the bolt and extends to the head 11' near the bolt, which is used to exhaust when the screw rod 9' of the bolt is fixed to the bearing box 1' and gas is generated in the bearing box 1' when the oil temperature of the lubricating oil rises; a second exhaust channel 13' is opened on the head 11' of the bolt and is connected to the first exhaust channel 12', which is used to exhaust when the screw rod 9' of the bolt is fixed to the bearing box 1' and gas is generated in the bearing box 1' when the oil temperature of the lubricating oil rises.

[0003] Although the above products can solve the corresponding technical problems, there are still certain defects in their use:

[0004] Fans are often used outdoors, so the above-mentioned products will also be used outdoors. When it rains, rainwater can easily enter the bearing box 1' through the second exhaust channel 13' and the first exhaust channel 12', causing the lubricating oil in the bearing box 1' to emulsify, which is not conducive to the use of the bearing assembly. Utility Model Content

[0005] The utility model aims to provide a bearing assembly for a fan in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A bearing assembly for a fan, comprising a bearing box with lubricating oil in its cavity, a rotating shaft rotatably arranged in the bearing box, two bearings arranged between the rotating shaft and the bearing box, a sealing end cover arranged on the end surface of the bearing box and located outside the rotating shaft, a sealing gasket arranged between the end surface of the bearing box and the sealing end cover, a sealing structure arranged between the sealing end cover and the rotating shaft, a discharge valve arranged on the bearing box for discharging the lubricating oil in the bearing box, and also comprising a connecting hole opened on the bearing box, a connecting column with one end arranged on the bearing box and located in the connecting hole, an entry hole opened on the connecting column for the lubricating oil to enter the bearing box, and a threaded connection to the connecting column. A connecting seat on the outside of the other end of the connecting column, which can be separated from the other end of the connecting column when the lubricating oil needs to enter the bearing box through the entry hole, and fixed to the other end of the connecting column when the lubricating oil does not need to enter the bearing box through the entry hole; a cover plate fixedly arranged on the end face of the connecting seat away from the entry hole, which is used to shield the entry hole when the connecting seat is fixed to the other end of the connecting column; a first exhaust channel opened on the end face of the cover plate close to the entry hole and connected to the entry hole, which is used to exhaust when the cover plate shields the entry hole and gas is generated in the bearing box when the oil temperature of the lubricating oil rises; a second exhaust channel opened on the inner wall of the connecting seat and connected to the first exhaust channel, which is used to exhaust when the cover plate shields the entry hole and gas is generated in the bearing box when the oil temperature of the lubricating oil rises.

[0008] A further improvement is that the outer cross-section of the connecting seat is in a polygonal shape.

[0009] A further improvement is that the outer cross-section of the connecting seat is a regular hexagon.

[0010] A further improvement is that: the connecting seat is a regular hexagonal nut.

[0011] A further improvement is that one end of the connecting column is detachably arranged on the bearing box.

[0012] A further improvement is that one end of the connecting column is threadedly connected to the bearing box.

[0013] A further improvement is that: the trajectory line of the second exhaust channel on the inner wall of the connecting seat is parallel to or at a certain angle to the axis of the connecting column.

[0014] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: the connecting seat can be separated from the other end of the connecting column when the lubricating oil needs to enter the bearing box through the entry hole and can be fixed to the other end of the connecting column when the lubricating oil does not need to enter the bearing box through the entry hole; the cover plate shields the entry hole when the connecting seat is fixed to the other end of the connecting column; the first exhaust channel can be exhausted when the cover plate shields the entry hole and the lubricating oil temperature rises and gas is generated in the bearing box; the second exhaust channel can be exhausted when the cover plate shields the entry hole and the lubricating oil temperature rises and gas is generated in the bearing box; the fan is often used in the open air, so the bearing assembly will also be in the open air; when it rains, rainwater is not easy to enter the bearing box through the second exhaust channel and the first exhaust channel, so it is not easy to cause the lubricating oil in the bearing box to emulsify, which is beneficial to the use of the bearing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of an existing bearing assembly for a fan;

[0017] Figure 2 It corresponds to Figure 1 A cross-sectional view of

[0018] Figure 3 It is a structural schematic diagram of the utility model;

[0019] Figure 4 It corresponds to Figure 3 A cross-sectional view of

[0020] Figure 5 It is a structural schematic diagram of a connecting seat, a cover plate, a first exhaust channel, and a second exhaust channel in the utility model.

[0021] Explanation of the accompanying drawings: bearing box 1', rotating shaft 2', bearing 3', sealing end cover 4', sealing gasket 5', sealing structure 6', discharge valve 7', connecting hole 8', screw 9', head 11', first exhaust channel 12', second exhaust channel 13', bearing box 1, rotating shaft 2, bearing 3, sealing end cover 4, sealing gasket 5, sealing structure 6, discharge valve 7, connecting hole 8, connecting column 9, entry hole 10, connecting seat 11, cover plate 12, first exhaust channel 13, second exhaust channel 14. DETAILED DESCRIPTION

[0022] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0023] See also Figures 3 to 5 As shown, the technical solution adopted in this specific implementation is:

[0024] A bearing assembly for a fan, comprising a bearing box 1 with lubricating oil in its cavity, a rotating shaft 2 rotatably arranged in the bearing box 1, two bearings 3 arranged between the rotating shaft 2 and the bearing box 1, a sealing end cover 4 arranged on the end surface of the bearing box 1 and located outside the rotating shaft 2, a sealing gasket 5 arranged between the end surface of the bearing box 1 and the sealing end cover 4, a sealing structure 6 arranged between the sealing end cover 4 and the rotating shaft 2, and a discharge valve 7 arranged on the bearing box 1 for discharging the lubricating oil in the bearing box 1, and also comprising a connecting hole 8 opened on the bearing box 1, a connecting column 9 at one end of which is arranged on the bearing box 1 and located in the connecting hole 8, an entry hole 10 extending through the connecting column 9 for the lubricating oil to enter the bearing box 1, and a sealing plug 7 threadedly connected to the outside of the other end of the connecting column 9. A connecting seat 11 which can be separated from the other end of the connecting column 9 when the lubricating oil needs to enter the bearing box 1 through the entry hole 10 and is fixed to the other end of the connecting column 9 when the lubricating oil does not need to enter the bearing box 1 through the entry hole 10; a cover plate 12 fixedly arranged on the end face of the connecting seat 11 away from the entry hole 10 and used to shield the entry hole 10 when the connecting seat 11 is fixed to the other end of the connecting column 9; a first exhaust channel 13 opened on the end face of the cover plate 12 close to the entry hole 10 and connected to the entry hole 10 and used to exhaust when the cover plate 12 shields the entry hole 10 and gas is generated in the bearing box 1 when the oil temperature of the lubricating oil rises; a second exhaust channel 14 opened on the inner wall of the connecting seat 11 and connected to the first exhaust channel 13 and used to exhaust when the cover plate 12 shields the entry hole 10 and gas is generated in the bearing box 1 when the oil temperature of the lubricating oil rises.

[0025] The outer cross-section shape of the connection seat 11 is a polygon, the outer cross-section shape of the connection seat 11 is a regular hexagon, and the connection seat 11 is a regular hexagonal nut.

[0026] One end of the connecting column 9 is detachably arranged on the bearing box 1, and one end of the connecting column 9 is threadedly connected to the bearing box 1. When the connecting column 9 is damaged or needs maintenance, it can be removed from the bearing box 1 for replacement or maintenance.

[0027] The trajectory of the second exhaust channel 14 on the inner wall of the connecting seat 11 is parallel to or at a certain angle to the axis of the connecting column 9 .

[0028] A polytetrafluoroethylene layer with high lubricity and non-stickiness is provided on the cover plate 12 and located in the first exhaust channel 13, which can reduce the blockage of the first exhaust channel 13; a polytetrafluoroethylene layer with high lubricity and non-stickiness is provided on the inner wall of the connecting seat 11 and located in the second exhaust channel 14, which can reduce the blockage of the second exhaust channel 14.

[0029] The working principle of the utility model is as follows: the connecting seat 11 can be separated from the other end of the connecting column 9 when the lubricating oil needs to enter the bearing box 1 through the inlet hole 10, and can be fixed to the other end of the connecting column 9 when the lubricating oil does not need to enter the bearing box 1 through the inlet hole 10; the cover plate 12 shields the inlet hole 10 when the connecting seat 11 is fixed to the other end of the connecting column 9; the first exhaust channel 13 can be used for exhaust when the cover plate 12 shields the inlet hole 10 and gas is generated in the bearing box 1 when the lubricating oil temperature rises; the second exhaust channel 14 is used for exhaust when the cover plate 12 shields the inlet hole 10 and gas is generated in the bearing box 1 when the lubricating oil temperature rises; the fan is often used in the open air, so the bearing assembly will also be in the open air; when it rains, it is not easy for rainwater to enter the bearing box 1 through the second exhaust channel 14 and the first exhaust channel 13, so that it is not easy to cause the lubricating oil in the bearing box 1 to emulsify, which is beneficial to the use of the bearing assembly.

[0030] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A bearing assembly for a fan, comprising a bearing box with lubricating oil in its cavity, a rotating shaft rotatably arranged in the bearing box, two bearings arranged between the rotating shaft and the bearing box, a sealing end cover arranged on the end surface of the bearing box and located outside the rotating shaft, a sealing gasket arranged between the end surface of the bearing box and the sealing end cover, a sealing structure arranged between the sealing end cover and the rotating shaft, and a discharge valve arranged on the bearing box for discharging the lubricating oil in the bearing box, characterized in that: The bearing housing also includes a connecting hole formed on the bearing housing, a connecting column at one end of which is disposed on the bearing housing and located in the connecting hole, an entry hole formed on the connecting column for lubricating oil to enter the bearing housing, a connecting seat threadedly connected to the outside of the other end of the connecting column and used to be separated from the other end of the connecting column when the lubricating oil needs to enter the bearing housing through the entry hole and fixed to the other end of the connecting column when the lubricating oil does not need to enter the bearing housing through the entry hole, a cover plate fixedly disposed on the end face of the connecting seat away from the entry hole and used to shield the entry hole when the connecting seat is fixed to the other end of the connecting column, a first exhaust channel formed on the end face of the cover plate close to the entry hole and connected to the entry hole and used to exhaust gas when the cover plate shields the entry hole and the lubricating oil temperature increases and gas is generated in the bearing housing, and a second exhaust channel formed on the inner wall of the connecting seat and connected to the first exhaust channel and used to exhaust gas when the cover plate shields the entry hole and the lubricating oil temperature increases and gas is generated in the bearing housing.

2. A bearing assembly for a fan according to claim 1, characterized in that: The outer cross-section of the connecting seat is in a polygonal shape.

3. A bearing assembly for a fan according to claim 2, characterized in that: The outer cross-section shape of the connecting seat is a regular hexagon.

4. A bearing assembly for a fan according to claim 2 or 3, characterized in that: The connecting seat is a regular hexagonal nut.

5. A bearing assembly for a fan according to claim 1, characterized in that: One end of the connecting column is detachably arranged on the bearing box.

6. A bearing assembly for a fan according to claim 5, characterized in that: One end of the connecting column is threadedly connected to the bearing box.

7. A bearing assembly for a fan according to claim 1, characterized in that: The trajectory line of the second exhaust channel on the inner wall of the connecting seat is parallel to or at a certain angle to the axis of the connecting column.

Images