Heat-conducting high-speed centrifugal water pump bearing

Abstract

The utility model discloses a high-speed centrifugal water pump bearing capable of conducting heat, which relates to the technical field of water pump bearings and comprises a water pump rotating shaft and a bearing body, the bearing body is composed of an inner rotating ring, an outer sleeve ring and balls, a heat conducting channel is formed between the inner rotating ring and the outer sleeve ring, and a heat conducting column is formed on the inner rotating ring. Heat conduction fins are formed on the outer lantern ring, and a heat dissipation channel is formed between every two adjacent heat conduction fins. According to the high-speed centrifugal water pump bearing capable of conducting heat, heat flowing can be accelerated through the heat conduction channels between the inner rotating ring and the outer sleeve ring, heat can be evenly distributed, heat can be rapidly guided into the outer sleeve ring through the multiple heat conduction columns on the inner rotating ring, and then heat dissipation is achieved through the multiple heat conduction fins on the outer sleeve ring and the heat dissipation channels between the heat conduction fins. Therefore, heat in the outer lantern ring can be quickly conducted to the outside, so that high heat conduction efficiency of the bearing body is guaranteed, the heat is quickly dissipated, the service life of the bearing body is prolonged, and the use reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of water pump bearing technology, specifically a heat-conducting high-speed centrifugal water pump bearing. Background Technology

[0002] A water pump is a machine that transports or pressurizes liquids. It is mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, etc., and is applied in various fields such as agricultural irrigation, urban water supply, and industrial manufacturing. Centrifugal water pumps are a common type of water pump that relies on the rotation of the impeller to give the liquid centrifugal force and throw it out of the impeller, thereby realizing the liquid transport. When in use, bearings need to be installed to support the rotation of the impeller and reduce friction.

[0003] In existing technologies, the pump shaft is simply connected to the sealing cover plate via a sealed bearing. However, the sealed bearing lacks a special water-blocking function and is prone to leakage over time. Furthermore, its sealing ring is simply a ring installation, which is also prone to leakage. To overcome these defects, existing technology (Chinese patent application number 202420485137.X, application date 2024-03-13) proposes a novel sealing structure for a centrifugal water pump. By setting a mechanical sealing ring between the rear pump housing and the motor assembly, the waterproof effect is better than that of a traditional single sealed bearing. In addition, a waterproof sealing gasket is set between the front and rear pump housings. Compared with the traditional single sealing ring, this plug-in connection method has a better waterproof effect. However, in actual operation, the existing centrifugal water pump bearings have poor heat conduction, causing heat to easily accumulate between the bearing and the pump shaft and not easily dissipate, resulting in a short bearing life and low reliability.

[0004] To address the aforementioned issues, innovative design based on existing equipment is urgently needed. Therefore, we have proposed a heat-conducting high-speed centrifugal water pump bearing that can effectively solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a heat-conducting high-speed centrifugal water pump bearing to solve the problem mentioned in the background art that the existing centrifugal water pump bearings have poor heat conduction during actual operation, which leads to heat easily accumulating between the bearing and the water pump shaft and is not easily dissipated, resulting in short bearing life and low reliability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat-conducting high-speed centrifugal water pump bearing, comprising a water pump shaft, with a bearing body mounted on the outer side of the water pump shaft; the bearing body is composed of an inner rotating ring and an outer ring that rotate relative to each other, with the inner rotating ring fixedly mounted on the outer side of the water pump shaft, and a plurality of balls evenly distributed in a circular pattern movably disposed between the inner rotating ring and the outer ring; the interiors of the inner rotating ring and the outer ring are suspended and form a through heat-conducting channel, the outer wall of the inner rotating ring is formed with a plurality of heat-conducting columns evenly distributed in a circular pattern, and the ends of the heat-conducting columns are attached to the inner wall of the outer ring, the outer wall of the outer ring is formed with a plurality of heat-conducting fins evenly distributed in a circular pattern, and a heat dissipation channel is formed between two adjacent heat-conducting fins.

[0007] Preferably, the outer wall of the outer ring is formed into a symmetrically distributed streamlined structure, and the outer edge of the heat-conducting fins on its outer wall is formed into the same streamlined structure.

[0008] Preferably, the outer wall of the inner rotating ring is formed with symmetrically distributed limiting rings on both sides, and the inner wall of the outer ring is provided with symmetrically distributed limiting rotating grooves on both sides, with the two limiting rings correspondingly limiting the rotation inside the limiting rotating grooves.

[0009] Preferably, the limiting ring has multiple through holes evenly distributed around its circumference, and the through holes allow the heat conduction channel to communicate with the outside, so that the heat accumulated in the heat conduction channel can be dissipated and discharged through the multiple through holes on both sides.

[0010] Preferably, the end of the heat-conducting column, i.e. the position where it contacts the inner wall of the outer ring, is formed with a contact with an arc surface, and the contact is polished and treated to be wear-resistant.

[0011] Preferably, the outer wall of the water pump shaft is fixedly provided with symmetrically distributed sealing rings on both sides of the outer sleeve ring, and the sealing rings are made of a flexible material with good thermal conductivity, such as alumina thermally conductive rubber.

[0012] Preferably, a plurality of connecting strips are provided between the two sealing rings in a circumferentially evenly distributed manner, and the connecting strips pass through the heat dissipation channel, and their two ends are fixedly connected to the sealing rings by fixing patches.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This kind of heat-conducting high-speed centrifugal water pump bearing can accelerate the heat flow and make the distribution uniform through the heat conduction channel between the inner rotating ring and the outer ring. Through the multiple heat conduction columns on the inner rotating ring, the heat can be quickly guided to the outer ring. Then, through the multiple heat conduction fins on the outer ring and the heat dissipation channel between them, the heat inside the outer ring can be quickly discharged to the outside, thereby ensuring the high heat conduction efficiency of the bearing body, making the heat dissipate quickly, thereby extending the service life of the bearing body and improving the reliability of use. The specific contents are as follows: (1) Through the heat conduction channel set between the inner rotating ring and the outer ring, the heat flow can be accelerated and made uniformly distributed in the heat conduction channel and on the surface of the inner rotating ring and the outer ring. Through the limiting rotation of the limiting ring and the limiting rotating groove, the relative rotation stability of the inner rotating ring and the outer ring can be ensured. And through the through hole, the heat in the heat conduction channel can be discharged from both sides, which can further accelerate the heat conduction efficiency of the bearing body.

[0014] Multiple heat-conducting pillars formed on the outer wall of the inner rotating ring can quickly guide heat from the surface of the inner rotating ring and the heat-conducting channel to the outer ring. The contacts at the ends of the heat-conducting pillars are polished and wear-resistant to ensure smooth rotation of the inner and outer rings while minimizing wear on the contacts. This allows the contacts to remain in contact with the inner wall of the outer ring, thus ensuring effective heat conduction between the two.

[0015] The heat dissipation channels formed by the multiple heat-conducting fins on the outer wall of the outer ring and the heat dissipation channels formed between adjacent heat-conducting fins can quickly conduct heat from inside the outer ring to the outside, thereby ensuring the high thermal conductivity of the bearing body, allowing heat to dissipate quickly, and thus extending the service life of the bearing body and improving its reliability.

[0016] By using two flexible sealing rings with good thermal conductivity, the water pump shaft and bearing body can be sealed and waterproof without affecting the heat dissipation of the outer ring. Furthermore, the combination of multiple sets of connecting strips and fixing patches can effectively ensure the stability of the sealing rings on both sides. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a schematic diagram of the inner rotating ring of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the outer ring of this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure between the sealing ring and the connecting strip of this utility model.

[0023] In the diagram: 1. Water pump shaft; 2. Bearing body; 3. Inner rotating ring; 4. Outer ring; 5. Ball bearing; 6. Heat conduction channel; 7. Limiting ring; 8. Limiting groove; 9. Through hole; 10. Heat conduction column; 11. Contact; 12. Heat conduction fin; 13. Heat dissipation channel; 14. Sealing ring; 15. Connecting strip; 16. Fixing patch. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: a heat-conducting high-speed centrifugal water pump bearing, including a water pump shaft 1, and a bearing body 2 installed on the outer side of the water pump shaft 1; the bearing body 2 is composed of an inner rotating ring 3 and an outer ring 4 that rotate relative to each other, and the inner rotating ring 3 is fixedly installed on the outer side of the water pump shaft 1, and a plurality of balls 5 are movably arranged between the inner rotating ring 3 and the outer ring 4 in a circumferentially evenly distributed manner, which are used to realize the rotational support of the bearing body 2 itself and reduce wear.

[0026] The inner rotating ring 3 and the outer ring 4 are suspended inside and form a through heat conduction channel 6. The outer wall of the inner rotating ring 3 is formed with a plurality of heat conduction pillars 10 evenly distributed in a circle, and the ends of the heat conduction pillars 10 are attached to the inner wall of the outer ring 4. The outer wall of the outer ring 4 is formed with a plurality of heat conduction fins 12 evenly distributed in a circle, and a heat dissipation channel 13 is formed between two adjacent heat conduction fins 12.

[0027] The heat-conducting channel 6, which runs through the inner rotating ring 3 and the outer ring 4, effectively ensures the heat flow between them, allowing heat to be evenly distributed inside the heat-conducting channel 6 and on the surfaces of the inner rotating ring 3 and the outer ring 4. Furthermore, the multiple heat-conducting pillars 10 formed on the outer wall of the inner rotating ring 3, in close contact with the outer ring 4, quickly guide the heat from the surface of the inner rotating ring 3 and the interior of the heat-conducting channel 6 to the interior of the outer ring 4. Then, through the multiple heat-conducting fins 12 formed on the outer wall of the outer ring 4 and the heat dissipation channels 13 formed between adjacent heat-conducting fins 12, the heat accumulated inside the outer ring 4 can be quickly dissipated to the outside. This ensures the high thermal conductivity of the bearing body 2, allowing heat to dissipate rapidly, thereby extending the service life of the bearing body 2 and improving its reliability.

[0028] Furthermore, the end of the heat-conducting column 10, i.e. the position where it contacts the inner wall of the outer ring 4, is formed with a contact 11 with an arc surface. The contact 11 is polished and wear-resistant to ensure the smoothness of the relative sliding of the inner rotating ring 3 and the outer ring 4, while reducing the wear of the contact 11. This allows the contact 11 of the heat-conducting column 10 to always be in contact with the inner wall of the outer ring 4, thereby ensuring the effect of heat conduction from the inner rotating ring 3 and the heat-conducting channel 6 to the outer ring 4 through the heat-conducting column 10 and the contact 11.

[0029] In addition, the outer wall of the outer ring 4 is formed into a symmetrically distributed streamlined structure, and the outer edge of the heat-conducting fins 12 on its outer wall is formed into the same streamlined structure. This can improve the overall heat conduction efficiency of the outer ring 4 while reducing the air resistance to the rotation of the outer ring 4, thereby further improving the rotation speed of the water pump shaft 1 and enhancing the water pump delivery effect.

[0030] Example 2: Based on Example 1, the inner rotating ring 3 has symmetrically distributed limiting rings 7 formed on both sides of its outer wall, and the outer ring 4 has symmetrically distributed limiting grooves 8 on both sides of its inner wall. The two limiting rings 7 are correspondingly limited to the inner side of the limiting grooves 8. Through the limiting rotation of the limiting rings 7 and the limiting grooves 8, the stability of the relative rotation of the inner rotating ring 3 and the outer ring 4 can be effectively guaranteed.

[0031] Furthermore, the limiting ring 7 has multiple through holes 9 evenly distributed around its circumference, and the through holes 9 allow the heat conduction channel 6 to be connected to the outside, so that the heat accumulated in the heat conduction channel 6 can be dissipated and discharged through the multiple through holes 9 on both sides, thereby further accelerating the heat conduction efficiency of the bearing body 2.

[0032] Example 3: Based on Example 2, the outer wall of the water pump shaft 1 is fixedly fitted with symmetrically distributed sealing rings 14 on both sides of the outer ring 4. The sealing rings 14 are made of a flexible material with good thermal conductivity, such as alumina thermally conductive rubber, to ensure the sealing and waterproofing between the water pump shaft 1 and the inner ring 3 and the outer ring 4 without affecting the heat dissipation of the outer ring 4.

[0033] Furthermore, a plurality of connecting strips 15 are evenly distributed around the circumference between the two sealing rings 14, and the connecting strips 15 pass through the heat dissipation channel 13, and their two ends are fixedly connected to the sealing rings 14 by fixing patches 16. Through the cooperation of multiple sets of connecting strips 15 and fixing patches 16, the stability of the installation of the sealing rings 14 on both sides can be effectively guaranteed.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A thermally conductive high-speed centrifugal water pump bearing, comprising a water pump shaft (1), wherein a bearing body (2) is mounted on the outer side of the water pump shaft (1). Its features are: The bearing body (2) is composed of an inner rotating ring (3) and an outer ring (4) that rotate relative to each other. The inner rotating ring (3) is fixedly installed on the outside of the water pump shaft (1), and multiple balls (5) are movably arranged between the inner rotating ring (3) and the outer ring (4) in a circumferentially evenly distributed manner. The inner rotating ring (3) and the outer ring (4) are suspended inside and form a through heat conduction channel (6). The outer wall of the inner rotating ring (3) is formed with a plurality of heat conduction columns (10) evenly distributed in a circle, and the ends of the heat conduction columns (10) are attached to the inner wall of the outer ring (4). The outer wall of the outer ring (4) is formed with a plurality of heat conduction fins (12) evenly distributed in a circle, and a heat dissipation channel (13) is formed between two adjacent heat conduction fins (12).

2. The thermally conductive high-speed centrifugal water pump bearing according to claim 1, characterized in that: The outer wall of the outer ring (4) is formed into a symmetrically distributed streamlined structure, and the outer edge of the heat-conducting fins (12) on its outer wall is formed into the same streamlined structure.

3. The thermally conductive high-speed centrifugal water pump bearing according to claim 2, characterized in that: The inner rotating ring (3) has symmetrically distributed limiting rings (7) formed on both sides of its outer wall, and the outer ring (4) has symmetrically distributed limiting rotating grooves (8) on both sides of its inner wall, with the two limiting rings (7) corresponding to the limiting rotating inside the limiting rotating grooves (8).

4. The thermally conductive high-speed centrifugal water pump bearing according to claim 3, characterized in that: The limiting ring (7) has multiple through holes (9) evenly distributed around its circumference, and the through holes (9) allow the heat conduction channel (6) to communicate with the outside.

5. The thermally conductive high-speed centrifugal water pump bearing according to claim 3, characterized in that: The end of the heat-conducting column (10), i.e. the position where it contacts the inner wall of the outer ring (4), is formed with a contact (11) with an arc surface, and the contact (11) is polished and wear-resistant.

6. The thermally conductive high-speed centrifugal water pump bearing according to claim 5, characterized in that: The outer wall of the water pump shaft (1) is fixedly fitted to both sides of the outer sleeve ring (4) with symmetrically distributed sealing rings (14), and the sealing rings (14) are made of a flexible material with good thermal conductivity, such as alumina thermally conductive rubber.

7. A thermally conductive high-speed centrifugal water pump bearing according to claim 6, characterized in that: A plurality of connecting strips (15) are provided between the two sealing rings (14) and are evenly distributed around the circumference. The connecting strips (15) pass through the heat dissipation channel (13) and their two ends are fixedly connected to the sealing rings (14) by fixing patches (16).

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