Self-balancing multi-stage pump bearing heat dissipation cooling structure

Abstract

The utility model discloses a self-balancing multistage pump bearing heat dissipation cooling structure which comprises a pump body, a non-driving end bearing cover is fixedly installed at one end of the pump body, a driving end bearing assembly is fixedly installed at the other end of the pump body, and a rotating shaft body is arranged in the pump body. Through the arrangement of the circulating pump, the heat dissipation plate, the connecting shaft, the cooling fan and other assemblies, the circulating pump pumps cooling liquid in the cooling liquid cavity into the cooling liquid pipe, the cooling liquid circulates into the cooling liquid cavity after being cooled by the heat dissipation plate, the circulating cooling liquid can reduce the temperature of the bearing sleeve and the bearing body, and the service life of the bearing sleeve and the bearing body is prolonged. The rotating shaft body rotates to drive the cooling fan to rotate through the connecting shaft, the cooling fan rotates to generate airflow which is blown to the heat dissipation plate, cooling of cooling liquid in the cooling liquid pipe can be accelerated, the heat dissipation effect is better, and compared with the prior art, the bearing sleeve and the bearing body can be well cooled; and equipment damage and progress influence caused by over-high temperature of the bearing sleeve can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of beauty technology, and in particular to a self-balancing multi-stage pump bearing heat dissipation and cooling structure. Background Technology

[0002] Self-balancing multistage pumps are widely used for conveying high-head media. Due to their symmetrically arranged impellers, they can balance most of the axial force during pump operation, with the remaining axial force borne by the bearings at both ends. In a self-balancing multistage pump, the bearings are located at both ends of the pump, with the pump rotor running between the two bearings and supporting the pump's operation. This design is chosen to minimize the pump's size while achieving high head, and to ensure that the outer diameter of the pump rotor remains within a reasonable range.

[0003] In the operation of self-balancing multistage pumps in the existing technology, the temperature of the bearings will rise when the rotating shaft rotates. The existing technology cannot provide good heat dissipation and cooling, resulting in excessively high bearing temperatures, which can easily cause damage and affect normal operation. Summary of the Invention

[0004] The technical problem this invention aims to solve is that when the rotating shaft of a self-balancing multistage pump rotates, the bearing temperature rises. Existing technologies cannot effectively dissipate heat and cool the bearing, resulting in excessively high bearing temperatures that can easily cause damage and affect normal operation.

[0005] To solve the above-mentioned technical problems, the present invention provides a self-balancing multi-stage pump bearing heat dissipation and cooling structure, including a pump body, a non-drive end bearing cover fixedly installed at one end of the pump body, a drive end bearing assembly fixedly installed at the other end of the pump body, a rotating shaft body inside the pump body, and a multi-stage pump impeller fixedly connected to the outside of the rotating shaft body; one end of the rotating shaft body extends through to the outside of the drive end bearing assembly and is fixedly connected to a coupling.

[0006] The other end of the shaft body extends through into the interior of the non-drive end bearing cover and is rotatably connected to one side of the inner surface of the non-drive end bearing cover; a bearing sleeve is fixedly connected to the inner side wall of the non-drive end bearing cover, a bearing body is fixedly installed inside the bearing sleeve, the inner ring of the bearing body is fixedly installed outside the shaft body, a coolant cavity is formed around the interior of the non-drive end bearing cover, and a liquid cooling assembly is provided on the exterior of the non-drive end bearing cover.

[0007] Preferably, the water-cooling assembly includes a circulation pump, which is fixedly installed on the outer wall of the non-drive end bearing cover. The inlet end of the circulation pump extends through into the interior of the coolant chamber, and the outlet end of the circulation pump is fixedly connected to a coolant pipe. One end of the coolant pipe is fixedly connected to the outer wall of the non-drive end bearing cover and communicates with the interior of the coolant chamber.

[0008] Preferably, a heat dissipation plate is fixedly installed on the outside of the coolant pipe. The heat dissipation plate is fixedly installed on the outer wall of the non-drive end bearing cover. The heat dissipation plate absorbs the heat of the coolant in the coolant pipe and dissipates it, which can reduce the temperature of the coolant.

[0009] Preferably, the coolant pipe is made of copper and the heat sink is made of aluminum, which provides good heat conduction.

[0010] Preferably, a plurality of fixing rods are fixedly connected around the outer side wall of the non-drive end bearing cover, and a protective cover is fixedly connected to one end of the plurality of fixing rods. A cooling fan is provided inside the protective cover, and the airflow generated by the rotation of the cooling fan blows towards the heat sink to accelerate cooling.

[0011] Preferably, a connecting shaft is fixedly connected to one side of the surface of the cooling fan, one end of the connecting shaft extends through into the interior of the non-drive end bearing cover and is fixedly connected to one end of the rotating shaft body, and the rotating shaft body can drive the cooling fan to rotate.

[0012] Preferably, the protective cover has multiple ventilation openings on the side of the surface away from the non-drive end bearing cover to facilitate ventilation.

[0013] Preferably, an outlet pipe and an inlet pipe are fixedly connected to the outer wall of the pump body.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention incorporates components such as a circulating pump, a heat sink, a connecting shaft, and a cooling fan. The circulating pump pumps the coolant from the coolant chamber into the coolant pipe. After being cooled by the heat sink, the coolant circulates back into the coolant chamber. This circulating coolant lowers the temperature of the bearing sleeve and bearing body. The rotation of the shaft body drives the cooling fan to rotate via the connecting shaft. The rotating cooling fan generates airflow that blows onto the heat sink, accelerating the cooling of the coolant in the coolant pipe and resulting in better heat dissipation. Compared with existing technologies, this invention effectively cools the bearing sleeve and bearing body, preventing overheating of the bearing sleeve that could damage the equipment and disrupt progress. Attached Figure Description

[0016] Figure 1 This is a perspective view of a self-balancing multistage pump bearing heat dissipation and cooling structure according to the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the non-drive end bearing cover of a self-balancing multi-stage pump bearing heat dissipation and cooling structure according to this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the protective cover of a self-balancing multi-stage pump bearing heat dissipation and cooling structure according to this utility model;

[0019] Figure 4 This is a schematic diagram of the coupling position of a self-balancing multi-stage pump bearing heat dissipation and cooling structure according to this utility model;

[0020] Figure 5 This is a cross-sectional view of the bearing cover position at the non-drive end of a self-balancing multistage pump bearing heat dissipation and cooling structure according to this utility model.

[0021] In the diagram: 1. Pump body; 2. Non-drive end bearing cover; 3. Drive end bearing assembly; 4. Shaft body; 5. Coupling; 6. Bearing sleeve; 7. Bearing body; 8. Coolant chamber; 9. Circulating pump; 10. Coolant pipe; 11. Heat sink; 12. Fixing rod; 13. Protective cover; 14. Cooling fan; 15. Connecting shaft; 16. Vent; 17. Water outlet pipe; 18. Water inlet pipe. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0023] Please see Figure 1 , Figure 2 and Figure 5 A self-balancing multi-stage pump bearing heat dissipation and cooling structure includes a pump body 1, a non-drive end bearing cover 2 fixedly installed at one end of the pump body 1, a drive end bearing assembly 3 fixedly installed at the other end of the pump body 1, a rotating shaft body 4 provided inside the pump body 1, a multi-stage pump impeller fixedly connected to the outside of the rotating shaft body 4, and a coupling 5 fixedly connected to one end of the rotating shaft body 4 extending through to the outside of the drive end bearing assembly 3.

[0024] The other end of the rotating shaft body 4 extends through into the interior of the non-drive end bearing cover 2 and is rotatably connected to one side of the inner surface of the non-drive end bearing cover 2. A bearing sleeve 6 is fixedly connected to the inner side wall of the non-drive end bearing cover 2. A bearing body 7 is fixedly installed inside the bearing sleeve 6. The inner ring of the bearing body 7 is fitted and fixedly installed outside the rotating shaft body 4. A coolant cavity 8 is opened around the interior of the non-drive end bearing cover 2. A liquid cooling component is provided on the exterior of the non-drive end bearing cover 2.

[0025] like Figures 1 to 5As shown, multiple fixing rods 12 are fixedly connected around the outer wall of the non-drive end bearing cover 2. One end of each fixing rod 12 is fixedly connected to a protective cover 13. A cooling fan 14 is installed inside the protective cover 13. The rotation of the cooling fan 14 generates airflow that blows onto the heat sink 11 to accelerate cooling. A connecting shaft 15 is fixedly connected to one side of the surface of the cooling fan 14. One end of the connecting shaft 15 extends through the interior of the non-drive end bearing cover 2 and is fixedly connected to one end of the rotating shaft body 4. The rotating shaft body 4 can drive the cooling fan 14 to rotate. Multiple ventilation holes 16 are opened on the side of the protective cover 13 away from the surface of the non-drive end bearing cover 2 for ventilation. A water outlet pipe 17 and a water inlet pipe 18 are fixedly connected to the outer wall of the pump body 1. The component includes a circulation pump 9, which is fixedly installed on the outer wall of the non-drive end bearing cover 2. The inlet end of the circulation pump 9 extends through into the interior of the coolant chamber 8. The outlet end of the circulation pump 9 is fixedly connected to a coolant pipe 10. One end of the coolant pipe 10 is fixedly connected to the outer wall of the non-drive end bearing cover 2 and communicates with the interior of the coolant chamber 8. A heat sink 11 is fixedly installed on the outside of the coolant pipe 10. The heat sink 11 absorbs the heat of the coolant in the coolant pipe 10 and dissipates it, which can reduce the temperature of the coolant. The coolant pipe 10 is made of copper, and the heat sink 11 is made of aluminum, which has good heat conduction effect.

[0026] In use, the external motor output shaft is connected to the coupling 5 to drive the rotating shaft body 4 and the multi-stage pump impeller inside the pump body 1 to rotate. The circulating pump 9 runs, pumping the coolant in the coolant chamber 8 into the coolant pipe 10. The heat of the coolant is transferred to the heat sink 11 through the coolant pipe 10 and dissipated, thereby reducing the coolant temperature. The rotation of the rotating shaft body 4 drives the connecting shaft 15 and the cooling fan 14 to rotate. The rotation of the cooling fan 14 generates airflow that blows towards the heat sink 11, which can further enhance the heat dissipation effect of the heat sink 11, thereby further reducing the temperature of the coolant in the coolant pipe 10. The cooled coolant is recirculated back into the coolant chamber 8 through one end of the coolant pipe 10. The low-temperature coolant can reduce the temperature of the bearing sleeve 6 and the bearing body 7, avoiding overheating that could damage the equipment.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A self-balancing multi-stage pump bearing heat dissipation and cooling structure, comprising a pump body (1), characterized in that: One end of the pump body (1) is fixedly installed with a non-drive end bearing cover (2), and the other end of the pump body (1) is fixedly installed with a drive end bearing assembly (3). The pump body (1) is provided with a rotating shaft body (4), and a multi-stage pump impeller is fixedly connected to the outside of the rotating shaft body (4). One end of the rotating shaft body (4) extends through to the outside of the drive end bearing assembly (3) and is fixedly connected with a coupling (5). The other end of the shaft body (4) extends through into the interior of the non-drive end bearing cover (2) and is rotatably connected to one side of the inner surface of the non-drive end bearing cover (2); a bearing sleeve (6) is fixedly connected to the inner wall of the non-drive end bearing cover (2), a bearing body (7) is fixedly installed inside the bearing sleeve (6), the inner ring of the bearing body (7) is fixedly installed outside the shaft body (4), a coolant cavity (8) is opened around the interior of the non-drive end bearing cover (2), and a water cooling assembly is provided on the exterior of the non-drive end bearing cover (2).

2. The self-balancing multi-stage pump bearing heat dissipation and cooling structure according to claim 1, characterized in that: The water-cooling assembly includes a circulation pump (9), which is fixedly installed on the outer wall of the non-drive end bearing cover (2). The inlet end of the circulation pump (9) extends through to the interior of the coolant chamber (8), and the outlet end of the circulation pump (9) is fixedly connected to a coolant pipe (10). One end of the coolant pipe (10) is fixedly connected to the outer wall of the non-drive end bearing cover (2) and communicates with the interior of the coolant chamber (8).

3. The heat dissipation and cooling structure for a self-balancing multi-stage pump bearing according to claim 2, characterized in that: A heat sink (11) is fixedly installed on the outside of the coolant pipe (10), and the heat sink (11) is fixedly installed on the outer side wall of the non-drive end bearing cover (2).

4. The heat dissipation and cooling structure for a self-balancing multi-stage pump bearing according to claim 3, characterized in that: The coolant pipe (10) is made of copper, and the heat sink (11) is made of aluminum.

5. The heat dissipation and cooling structure for a self-balancing multi-stage pump bearing according to claim 1, characterized in that: Multiple fixing rods (12) are fixedly connected around the outer wall of the non-drive end bearing cover (2). One end of the multiple fixing rods (12) is fixedly connected to a protective cover (13). A cooling fan (14) is provided inside the protective cover (13).

6. The heat dissipation and cooling structure for a self-balancing multi-stage pump bearing according to claim 5, characterized in that: A connecting shaft (15) is fixedly connected to one side of the surface of the cooling fan (14). One end of the connecting shaft (15) extends through the interior of the non-drive end bearing cover (2) and is fixedly connected to one end of the rotating shaft body (4).

7. The heat dissipation and cooling structure for a self-balancing multi-stage pump bearing according to claim 5, characterized in that: The protective cover (13) has multiple ventilation openings (16) on the side of the surface away from the non-drive end bearing cover (2).

8. The heat dissipation and cooling structure for a self-balancing multi-stage pump bearing according to claim 1, characterized in that: The pump body (1) is fixedly connected to the outer wall of the pump body (1) with an outlet pipe (17) and an inlet pipe (18).

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