A bearing cooling device for a water pump motor

Abstract

The utility model relates to the technical field of motor bearing cooling, and in particular to a bearing cooling device for a water pump motor. It includes a bearing and a bearing seat for mounting the bearing, an annular groove is provided in the bearing seat, a plurality of baffles are provided in the annular groove, the first baffle is fixed on the outer wall of the annular groove, and a gap is left between the first baffle and the inner wall of the annular groove, the second baffle is fixed on the inner wall of the annular groove, and a gap is left between the second baffle and the outer wall of the annular groove, one end of the third baffle is fixedly connected to the inner wall of the annular groove, and the other end is fixedly connected to the outer wall of the annular groove, and a water inlet and a water outlet are provided in the annular groove. The bearing seat is provided with an annular groove, and the annular groove is provided with a water inlet and a water outlet, so as to realize the circulation of water-cooling liquid in the annular groove, and at the same time, the baffles provided in the annular groove increase the stroke of the water-cooling liquid in the annular groove, and increase the time for the water-cooling liquid to absorb heat to ensure the cooling effect.

Description

Technical Field

[0001] The utility model relates to the technical field of motor bearing temperature reduction, in particular to a bearing temperature reduction device for a water pump motor. Background Art

[0002] When the temperature is high in summer, after the relay water pump motor has been working for a period of time, the temperature of the front bearing of the motor will exceed 90 degrees Celsius. According to the international standards for motor bearings, the temperature rise of the bearing shall not exceed 40 degrees Celsius from the ambient temperature, and the maximum temperature at the bearing shall not exceed 80 degrees Celsius. When the temperature exceeds 80 degrees Celsius, it will seriously affect the service life of the motor and threaten the safe operation of the boiler. Among the existing methods for cooling the bearings, most of them use water cooling, such as directly wrapping a layer of spring-shaped water-cooling pipes around the outside of the bearing seat to cool the bearing. This cooling method has low heat transfer efficiency and the cooling effect is not obvious. Summary of the invention

[0003] In order to solve the problems that the existing methods for cooling bearings are mostly carried out by water cooling, such as directly winding a layer of spring-shaped water-cooling pipe around the outer side of the bearing seat to cool the bearing, the heat transfer efficiency is low, and the cooling effect is not obvious, the utility model proposes a bearing cooling device for a water pump motor, an annular groove is opened in the bearing seat and a water inlet and a water outlet are provided in the annular groove to realize the circulation of water-cooling liquid in the annular groove and take away the heat transferred from the bearing to the bearing seat. At the same time, the baffle arranged in the annular groove increases the stroke of the water-cooling liquid in the annular groove, and increases the time for the water-cooling liquid to absorb heat to ensure the cooling effect.

[0004] In order to achieve the above purpose, the technical solution of the utility model is: a bearing cooling device for a water pump motor, including a bearing and a bearing seat for mounting the bearing, an annular groove surrounding the bearing is provided in the bearing seat, a plurality of baffles are evenly arranged in the circumferential direction of the annular groove, and the baffles include a first baffle, a second baffle and a third baffle, the first baffle is fixed on the outer wall of the annular groove, and a gap is left between the inner wall of the annular groove, the second baffle is fixed on the inner wall of the annular groove, and a gap is left between the outer wall of the annular groove, one end of the third baffle is fixedly connected to the inner wall of the annular groove, and the other end is fixedly connected to the outer wall of the annular groove, and a water inlet and a water outlet are provided in the annular groove, and the water inlet and the water outlet are respectively located on both sides of the third baffle. The annular groove provided in the bearing seat can physically cool the bearing without affecting the movement and lubrication of the bearing, and the cooling effect is good, which prolongs the service life of the bearing, and the annular groove is a completely closed sealed space except that the water inlet and the water outlet need to be connected to the outside.

[0005] Furthermore, the water inlet and the water outlet are located at the lower part of the annular groove, and the water inlet and the water outlet are symmetrically arranged on both sides of the third baffle. The water inlet located at the lower part can ensure that the water-cooling liquid occupies all the space in the annular groove to ensure the cooling effect.

[0006] Furthermore, the water inlet and the water outlet are arranged between the third baffle and the first baffle or the second baffle adjacent to the third baffle, so that all spaces separated by the baffles can be completed.

[0007] Furthermore, the water inlet is connected to an external water inlet pipe, the water outlet is connected to an external water outlet pipe, a water pump is provided on the water inlet pipe and its end is connected to a water tank, the end of the water outlet pipe is connected to the water tank, and a solenoid valve is provided on the water inlet pipe. The solenoid valve can control the flow rate and opening and closing state of the water coolant, so as to control the temperature of the bearing.

[0008] Furthermore, the end of the water inlet pipe extends into the water tank, and the end is connected to multiple branch pipes. The upper part of the water tank is open, and a first filter plate is provided at the opening. The connection position of the water outlet pipe and the water tank is higher than the connection position of the water inlet pipe and the water tank. Under the action of the water pump, water-cooling liquid will always flow out of the water outlet pipe. The setting of multiple branch pipes is conducive to the volatilization of heat of the water-cooling liquid. The setting of the first filter plate can absorb water vapor formed by the contact between the water-cooling liquid and the air, thereby reducing the impact on the environment.

[0009] Furthermore, the bearing seat is connected with a cover plate via bolts. The cover plate is used to install the bearing seat on the motor.

[0010] Through the above technical scheme, the beneficial effects of the utility model are as follows: the utility model opens an annular groove in the bearing seat and is provided with a water inlet and a water outlet in the annular groove, the water inlet is respectively connected to an external water inlet pipe and a water outlet pipe, and the water inlet pipe transports the water in the water tank to the annular groove driven by a water pump, and then flows into the water outlet pipe through the water outlet and is finally transported to the water tank to realize circulating water-cooling liquid to cool the bearing, and the first baffle and the second baffle arranged in the annular groove can increase the stroke of the water-cooling liquid in the annular groove, increase the time for the water-cooling liquid to absorb heat, take away more heat transferred from the bearing to the bearing seat, and ensure the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural schematic diagram of a bearing seat of a bearing cooling device for a water pump motor according to the utility model;

[0012] Figure 2 It is a side view of a bearing seat of a bearing cooling device for a water pump motor according to the utility model;

[0013] Figure 3 This is a structural cross-sectional view of the BB portion of a bearing cooling device for a water pump motor according to the utility model;

[0014] Figure 4 This is a schematic structural diagram of a bearing cooling device for a water pump motor according to the utility model;

[0015] Figure 5 The utility model is a structural sectional view of a water tank of a bearing cooling device for a water pump motor.

[0016] The numbers in the accompanying drawings are: 1 is a bearing, 2 is a bearing seat, 3 is an annular groove, 4 is a first baffle, 5 is a second baffle, 6 is a third baffle, 7 is a water inlet, 8 is a water outlet, 9 is a water inlet pipe, 10 is a water outlet pipe, 11 is a water pump, 12 is a water tank, 13 is a cover plate, 14 is a first filter plate, 15 is a water inlet, and 16 is a solenoid valve. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0018] like Figure 1 to Figure 5 As shown, this embodiment provides a bearing cooling device for a water pump motor, including a bearing 1 and a bearing seat 2 for mounting the bearing 1, wherein an annular groove 3 surrounding the bearing 1 is provided in the bearing seat 2, and a plurality of baffles are evenly arranged in the circumferential direction of the annular groove 3, wherein the baffles include a first baffle 4, a second baffle 5 and a third baffle 6, wherein the first baffle 4 is fixed on the outer wall of the annular groove 3, and a gap is left between the first baffle 4 and the inner wall of the annular groove 3, the second baffle 5 is fixed on the inner wall of the annular groove 3, and a gap is left between the second baffle 5 and the outer wall of the annular groove 3, one end of the third baffle 6 is fixedly connected to the inner wall of the annular groove 3, and the other end is fixedly connected to the outer wall of the annular groove 3, and the bearing seat 2 is connected to a cover plate 13 by bolts, and the cover plate 13 is used to mount the bearing seat 2 on the motor.

[0019] Specifically, the annular groove 3 is provided with a water inlet 7 and a water outlet 8, the water inlet 7 and the water outlet 8 of the annular groove 3 need to be connected to the outside, and the inside is a completely closed sealed space, the water inlet 7 and the water outlet 8 are located at the lower part of the annular groove 3, and the water inlet 7 and the water outlet 8 are symmetrically arranged on both sides of the third baffle 6, and the water inlet 7 and the water outlet 8 are arranged between the third baffle 6 and the first baffle 4 or the second baffle 5 adjacent to the third baffle 6. Figure 3 As shown, in this embodiment, the water inlet 7 and the water outlet 8 are symmetrically arranged on both sides of the third baffle 6, the water inlet 7 is arranged between the third baffle 6 and the first baffle 4 on the left side of the third baffle 6, and the water outlet 8 is arranged between the third baffle 6 and the first baffle 4 on the right side of the third baffle 6.

[0020] The water inlet 7 and the water outlet 8 are respectively located on both sides of the third baffle 6. The water inlet 7 is connected to an external water inlet pipe 9, and the water outlet 8 is connected to an external water outlet pipe 10. The water inlet pipe 9 is provided with a water pump 11 and its end is connected to a water tank 12. The end of the water outlet pipe 10 is connected to the water tank 12.

[0021] like Figure 4 and Figure 5 As shown, in the present embodiment, one end of the water inlet pipe 9 is connected to the water inlet 7, and the other end extends into the water tank 12, and a plurality of branch pipes are connected to the end thereof, so that the coolant carrying heat can enter the coolant in the water tank 12 more evenly. In this process, the coolant carrying heat is pre-cooled and vaporized to form water vapor. For this purpose, the upper portion of the water tank 12 is opened, and a first filter plate 14 is provided at the opening. The setting of the first filter plate 14 can absorb water vapor formed by the contact between the water-cooling liquid and the air, thereby reducing the impact on the environment.

[0022] In this embodiment, the water-cooling liquid is distilled water, which reduces the scale appearing in the annular groove 3 and ensures the cooling effect of the device.

[0023] As an implementable embodiment, in this embodiment, the connection position of the water outlet pipe 10 and the water tank 12 is higher than the connection position of the water inlet pipe 9 and the water tank 12, the water tank 12 is connected with a water inlet 15, and the water inlet pipe 9 is provided with a solenoid valve 16. The setting of the water inlet 15 can replenish the water-cooling liquid in the water tank 12, and the solenoid valve 16 can control the flow rate and opening and closing state of the water-cooling liquid, so as to control the temperature of the bearing 1.

[0024] When in use, turn on the water pump 11. At this time, the water-cooling liquid in the water tank 12 is sent into the annular groove 3 of the bearing seat 2 through the water inlet pipe 9 under the action of the water pump 11. After passing through the gap between the first baffle 4 and the inner wall and then through the gap between the second baffle 5 and the outer wall, it is blocked by the third baffle 6. At this time, the water-cooling liquid enters the water outlet pipe 10 through the water outlet 8 on one side of the third baffle 6, and then is evenly transported to the water tank 12 through multiple branch pipes. At this time, the water-cooling liquid carrying heat partially vaporizes and rises after encountering the external air, and most of it is adsorbed after encountering the first filter plate 14, and more water-cooling liquid will directly contact the water-cooling liquid in the water tank 12, and the heat will be evenly retained in the water tank 12. After multiple cycles, the bearing 1 can be effectively cooled.

[0025] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A bearing cooling device for a water pump motor, comprising a bearing (1) and a bearing seat (2) for mounting the bearing (1), characterized in that: The bearing seat (2) is provided with an annular groove (3) surrounding the bearing (1), and a plurality of baffles are evenly arranged in the inner circumferential direction of the annular groove (3), the baffles comprising a first baffle (4), a second baffle (5) and a third baffle (6), the first baffle (4) being fixed on the outer side wall of the annular groove (3) and having a gap with the inner side wall of the annular groove (3), the second baffle (5) being fixed on the inner side wall of the annular groove (3) and having a gap with the outer side wall of the annular groove (3), and one end of the third baffle (6) being fixedly connected to the inner side wall of the annular groove (3) and the other end being fixedly connected to the outer side wall of the annular groove (3); A water inlet (7) and a water outlet (8) are provided in the annular groove (3), and the water inlet (7) and the water outlet (8) are respectively located on two sides of the third baffle (6).

2. A bearing cooling device for a water pump motor according to claim 1, characterized in that: The water inlet (7) and the water outlet (8) are located at the lower part of the annular groove (3), and the water inlet (7) and the water outlet (8) are symmetrically arranged on both sides of the third baffle (6).

3. A bearing cooling device for a water pump motor according to claim 1, characterized in that: The water inlet (7) and the water outlet (8) are arranged between the third baffle (6) and the first baffle (4) or the second baffle (5) adjacent to the third baffle (6).

4. A bearing cooling device for a water pump motor according to claim 1, characterized in that: The water inlet (7) is connected to an external water inlet pipe (9), the water outlet (8) is connected to an external water outlet pipe (10), a water pump (11) is provided on the water inlet pipe (9) and an end thereof is connected to a water tank (12), an end of the water outlet pipe (10) is connected to the water tank (12), and a solenoid valve (16) is provided on the water inlet pipe (9).

5. A bearing cooling device for a water pump motor according to claim 4, characterized in that: The end of the water inlet pipe (9) extends into the interior of the water tank (12), and the end is connected to a plurality of branch pipes. The upper portion of the water tank (12) is open, and a first filter plate (14) is provided at the opening. The connection position of the water outlet pipe (10) and the water tank (12) is higher than the connection position of the water inlet pipe (9) and the water tank (12).

6. A bearing cooling device for a water pump motor according to claim 1, characterized in that: The bearing seat (2) is connected to a cover plate (13) via bolts.

Images