Fan bearing seat

Abstract

The utility model relates to the technical field of bearing seats, in particular to a fan bearing seat, which is characterized in that the upper end of a bearing seat body is communicated with an oil filling pipe, the outer wall of the oil filling pipe is communicated with a ventilation pipe, the right end of the ventilation pipe is provided with an annular groove, a sealing gasket is mounted in the annular groove, and the outer wall of the oil filling pipe is connected with an air pipe through the ventilation pipe; an adjusting valve is installed on the outer wall of the air pipe, an auxiliary pipe is installed on the outer wall of the bearing seat body, a filter screen is installed at the joint of the auxiliary pipe and the bearing seat body, and an oil window is installed at the front end of the auxiliary pipe. Therefore, the pressure in the bearing seat body can be adjusted to be in a micro-negative pressure state through the adjusting valve, certain suction force can be generated in the box of the bearing seat body due to the fact that the pressure in the box of the bearing seat body is lower than the pressure outside the box, oil leaked out of a shaft head is sucked into the box, and the purpose that the pressure difference between the inside and the outside of the bearing seat can be adjusted is achieved. And the oil leakage of the bearing seat shaft head is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing seats, in particular to a fan bearing seat. Background Art

[0002] During the long-term use of the fan, the shaft head seal of the bearing seat will often leak oil due to wear and other problems. The oil leakage not only affects the normal operation of the fan, but may also cause safety accidents. Therefore, it is of great significance to control the problem of oil leakage in the bearing seat.

[0003] Traditional treatment methods mainly include disassembling and replacing gaskets and treating joint surfaces. However, these methods require long-term downtime, which increases the company's operating costs. In addition, the treatment effect is not ideal, and leakage often occurs again.

[0004] In addition, an oil window is provided on the bearing seat, but no filter is provided in the oil window, which causes impurities to adhere to the inner wall of the oil window, affecting the staff's observation and control of the amount of lubricating oil added, and is inconvenient to use. Therefore, it is necessary to propose a fan bearing seat to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a fan bearing seat, which has the characteristics of making the pressure inside the bearing seat slightly negative, preventing oil leakage from the bearing seat shaft head and facilitating the protection of the oil window through the pressure difference between the inside and outside of the bearing seat, and is easy to use.

[0006] The utility model aims to provide a fan bearing seat, comprising a bearing seat body, the upper end of the bearing seat body is connected with a refueling pipe, the outer wall of the refueling pipe is connected with a ventilation pipe, the right end of the ventilation pipe is provided with an annular groove, and a sealing gasket is installed inside the annular groove;

[0007] The outer wall of the refueling pipe is connected to an air pipe through a ventilation pipe, and the other end of the air pipe is connected to the air inlet of the fan arranged at the right end of the bearing seat body;

[0008] A regulating valve is installed on the outer wall of the air pipe;

[0009] An auxiliary pipe is installed on the outer wall of the bearing seat body, and a filter screen is installed at the connection between the auxiliary pipe and the bearing seat body. An oil window is installed at the front end of the auxiliary pipe.

[0010] In order to further prevent oil leakage from the shaft head, as a preferred fan bearing seat of the utility model, the fan shaft is installed inside the bearing seat body through a coupling, and the left and right ends of the bearing seat body are detachably connected with mounting rings sleeved on the outer wall of the shaft through bolts, and the interiors of the two mounting rings are provided with wool felt sleeved on the outer wall of the shaft.

[0011] In order to increase the sealing between the ventilation duct and the air pipe, as a preferred fan bearing seat of the utility model, the ventilation duct and the outer wall of the air pipe are fixedly connected with a fixing plate, and the two fixing plates are detachably connected by bolts.

[0012] In order to assist the staff to observe the amount of grease added, as a preferred embodiment of a fan bearing seat of the utility model, the outer wall of the oil window is provided with scale lines.

[0013] In order to prevent gas leakage between the air pipe and the fan inlet, as a preferred embodiment of the fan bearing seat of the utility model, the connection between the air pipe and the fan inlet is coated with sealant.

[0014] In order to facilitate the closure of the refueling pipe, as a preferred embodiment of a fan bearing seat of the utility model, a sealing plug is installed on the upper end of the refueling pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] According to the utility model, after the fan is started, the pressure near the fan inlet is in a negative pressure state. Since the bearing seat body is connected to the fan inlet through the air pipe, the pressure in the bearing seat body can be regulated to a slightly negative pressure state through the regulating valve. At this time, since the pressure in the box of the bearing seat body is lower than that outside the box, a certain suction force will be generated in the box of the bearing seat body, and the leaked oil of the shaft head will be sucked into the box, so as to achieve the purpose of preventing oil leakage of the bearing seat shaft head by adjusting the pressure difference between the inside and outside of the bearing seat.

[0017] The filter can filter out impurities in the grease to prevent them from adhering to the inner wall of the oil window, thereby achieving the purpose of protecting the oil window and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structure diagram of the utility model;

[0019] Figure 2 It is a cross-sectional structural diagram of the utility model;

[0020] Figure 3 It is a left side cross-sectional structural diagram of the utility model;

[0021] Figure 4 For the utility model Figure 2 A is an enlarged structural diagram.

[0022] In the figure: 1. Bearing seat body; 2. Oil filling pipe; 3. Ventilation pipe; 4. Annular groove; 5. Sealing gasket; 6. Air pipe; 7. Fan; 8. Regulating valve; 9. Auxiliary pipe; 10. Oil window; 11. Scale line; 12. Filter; 13. Mounting ring; 14. Fixing plate; 15. Wool felt. DETAILED DESCRIPTION

[0023] See also Figures 1 to 4 A fan bearing seat comprises a bearing seat body 1, the upper end of the bearing seat body 1 is connected with a refueling pipe 2, the outer wall of the refueling pipe 2 is connected with a ventilation pipe 3, the right end of the ventilation pipe 3 is provided with an annular groove 4, and a sealing gasket 5 is installed inside the annular groove 4;

[0024] The outer wall of the refueling pipe 2 is connected to an air pipe 6 through a ventilation pipe 3, and the other end of the air pipe 6 is connected to the air inlet of a fan 7 arranged at the right end of the bearing seat body 1;

[0025] A regulating valve 8 is installed on the outer wall of the air pipe 6;

[0026] An auxiliary pipe 9 is installed on the outer wall of the bearing seat body 1, and a filter screen 12 is installed at the connection between the auxiliary pipe 9 and the bearing seat body 1;

[0027] An oil window 10 is installed at the front end of the auxiliary pipe 9 .

[0028] In this embodiment: when in use, after the fan 7 is started, the pressure near the inlet of the fan 7 is in a negative pressure state. Since the fan 7 and the bearing seat body 1 are connected to the inlet of the fan 7 through the air pipe 6, the pressure in the bearing seat body 1 can be adjusted to a slightly negative pressure state through the regulating valve 8. At this time, since the pressure in the box of the bearing seat body 1 is lower than the pressure outside the box, a certain suction force will be generated in the box of the bearing seat body 1, and the leaked oil of the shaft head will be sucked into the box, which can effectively prevent the oil leakage problem of the shaft head of the bearing seat body 1;

[0029] Impurities in the grease can be filtered through the filter 12 to prevent the impurities from adhering to the inner wall of the oil window 10 and affecting the staff's observation of the amount of grease to be added, making it more convenient to use.

[0030] As a technical optimization solution of the utility model, the shaft of the fan 7 is installed inside the bearing seat body 1 through a coupling, and the left and right ends of the bearing seat body 1 are detachably connected with mounting rings 13 sleeved on the outer wall of the shaft through bolts, and the insides of the two mounting rings 13 are provided with wool felt 15 sleeved on the outer wall of the shaft.

[0031] In this embodiment: the wool felt 15 can be supported and fixed by two mounting rings 13, and the wool felt 15 can further prevent oil leakage from the shaft head.

[0032] As a technical optimization solution of the present invention, the outer walls of the ventilation pipe 3 and the air pipe 6 are both fixedly connected with a fixing plate 14, and the two fixing plates 14 are detachably connected by bolts.

[0033] In this embodiment, the two fixing plates 14 are detachably connected by bolts, which can conveniently tightly fix the connection between the ventilation pipe 3 and the air pipe 6, thereby increasing the sealing between the ventilation pipe 3 and the air pipe 6.

[0034] As a technical optimization solution of the present invention, the outer wall of the oil window 10 is provided with scale lines 11 .

[0035] In this embodiment, the scale line 11 can assist the staff in observing the amount of grease that needs to be added.

[0036] As a technical optimization solution of the utility model, the connection between the air pipe 6 and the inlet of the fan 7 is coated with sealant.

[0037] In this embodiment, by applying sealant at the connection between the air pipe 6 and the inlet of the fan 7, air leakage at the connection between the air pipe 6 and the inlet of the fan 7 can be prevented.

[0038] As a technical optimization solution of the utility model, a sealing plug is installed at the upper end of the refueling pipe 2.

[0039] In this embodiment, the filling pipe 2 can be conveniently closed by the sealing plug.

[0040] Working principle: When in use, first start the fan 7, and the pressure near the inlet of the fan 7 is in a negative pressure state. Since the fan 7 and the bearing seat body 1 are connected to the inlet of the fan 7 through the air pipe 6, the pressure in the bearing seat body 1 can be adjusted to a slightly negative pressure state through the regulating valve 8. At this time, since the pressure in the box of the bearing seat body 1 is lower than the pressure outside the box, a certain suction force will be generated in the box of the bearing seat body 1, and the leaked oil of the shaft head will be sucked into the box, effectively preventing the oil leakage problem of the shaft head of the bearing seat body 1;

[0041] Impurities in the grease can be filtered through the filter 12 to prevent the impurities from adhering to the inner wall of the oil window 10 and affecting the staff's observation of the amount of grease to be added, making it more convenient to use.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fan bearing seat, comprising a bearing seat body (1), characterized in that: The upper end of the bearing seat body (1) is connected to a refueling pipe (2), the outer wall of the refueling pipe (2) is connected to a ventilation pipe (3), the right end of the ventilation pipe (3) is provided with an annular groove (4), and a sealing gasket (5) is installed inside the annular groove (4); The outer wall of the refueling pipe (2) is connected to an air pipe (6) via a ventilation pipe (3), and the other end of the air pipe (6) is connected to an air inlet of a fan (7) arranged at the right end of the bearing seat body (1); The outer wall of the air pipe (6) is provided with a regulating valve (8); An auxiliary tube (9) is installed on the outer wall of the bearing seat body (1), a filter screen (12) is installed at the connection between the auxiliary tube (9) and the bearing seat body (1), and an oil window (10) is installed at the front end of the auxiliary tube (9).

2. A fan bearing seat according to claim 1, characterized in that: The shaft of the fan (7) is installed inside the bearing seat body (1) through a coupling, and the left and right ends of the bearing seat body (1) are detachably connected to mounting rings (13) sleeved on the outer wall of the shaft through bolts, and the insides of the two mounting rings (13) are provided with wool felt (15) sleeved on the outer wall of the shaft.

3. A fan bearing seat according to claim 1, characterized in that: The outer walls of the ventilation pipe (3) and the air pipe (6) are both fixedly connected with a fixing plate (14), and the two fixing plates (14) are detachably connected via bolts.

4. A fan bearing seat according to claim 1, characterized in that: The outer wall of the oil window (10) is provided with scale lines (11).

5. The fan bearing seat according to claim 1, characterized in that: The connection between the air pipe (6) and the inlet of the fan (7) is coated with sealant.

6. A fan bearing seat according to claim 1, characterized in that: A sealing plug is installed at the upper end of the refueling pipe (2).

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