A guide type shaft coupling bearing for a cooling water pump of an internal combustion engine

CN224755977UActive Publication Date: 2026-09-15LIYANG DONGFENG DIESEL ENGINE PARTS FACTORY CO LTD
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Patent Information

Application Number
CN202521359292.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-29
Publication Date
2026-09-15
Estimated Expiration
2035-06-29

AI Technical Summary

Technical Problem

[0003]内燃机冷却水泵所用的导流型轴连轴承,虽然可以对轴体进行定位,确保水泵轴体稳定进行驱动旋转,但是在旋转过程中,难以对大量的润滑油脂进行导流定位辅助,导致润滑油脂涂抹在轴承区域后,会造成润滑油脂外溢流失,浪费量较多

Benefits of technology

[0015] 1. This utility model adopts a guide lubrication assembly to pour lubricating grease into the gap between the inner bushing and the pump shaft. The outer bushing supports the support ring, the support ring supports the guide ring, the guide ring supports the cover ring, and the cover ring and guide ring guide and limit the lubricating grease, so that the lubricating grease can fully lubricate the connection between the pump shaft and the inner bushing and avoid the waste of lubricating grease.

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Abstract

The utility model discloses a kind of flow guide type shaft connecting bearing for internal combustion engine cooling water pump, specifically related to bearing technical field, including outer shaft sleeve, the upper surface of outer shaft sleeve is fixedly connected with support ring, the inside of support ring is equipped with guiding lubricating component, guiding lubricating component includes: flow guide ring, fixedly connected on the inner wall of support ring, the cover ring of the upper surface of flow guide ring;Inner shaft sleeve, rotation is installed in the inner wall of outer shaft sleeve, the cross section shape of support ring is toroidal, the height of flow guide ring is higher than the height of support ring, the cross section shape of cover ring is toroidal.The utility model uses guiding lubricating component, pours into the gap between inner shaft sleeve and pump shaft, flow guide ring supports cover ring, cover ring and flow guide ring are oriented and limited to lubricating grease, fully make lubricating grease fully lubricate pump shaft and inner shaft sleeve junction, avoid lubricating grease waste.
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Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and more specifically, to a flow-guided shaft bearing for an internal combustion engine cooling water pump. Background Technology

[0002] The shaft bearing for internal combustion engine cooling water pumps significantly improves the efficiency and reliability of the pump by optimizing coolant flow, reducing friction loss, and improving lubrication and cooling conditions. Its design not only adapts to the high temperature and high pressure environment of internal combustion engine cooling systems, but also simplifies the structure and reduces maintenance costs, making it an indispensable key component in modern internal combustion engine cooling systems.

[0003] Although the guide-type shaft bearing used in the internal combustion engine cooling water pump can position the shaft and ensure stable drive rotation of the pump shaft, it is difficult to guide and position a large amount of lubricating grease during rotation. As a result, after the lubricating grease is applied to the bearing area, it will overflow and be lost, resulting in a large amount of waste. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides the following technical solution: a flow-guiding shaft bearing for an internal combustion engine cooling water pump, comprising an outer bushing, a support ring fixedly connected to the upper surface of the outer bushing, and a guide lubrication assembly installed inside the support ring, the guide lubrication assembly comprising:

[0005] A flow guide ring, fixedly connected to the inner wall of the support ring, and a cover ring on the upper surface of the flow guide ring;

[0006] The inner bushing is rotatably mounted on the inner wall of the outer bushing.

[0007] In a preferred embodiment, the cross-sectional shape of the support ring is annular, and the height of the guide ring is higher than the height of the support ring.

[0008] In a preferred embodiment, the cover ring has a circular cross-sectional shape, and the cross-sectional area of ​​the cover ring is larger than the cross-sectional area of ​​the guide ring.

[0009] In a preferred embodiment, the cover ring has a circular cross-sectional shape, and a gap is provided between the inner bushing and the cover ring.

[0010] In a preferred embodiment, a pump shaft is rotatably connected inside the inner bushing, and a cooling pump body is rotatably connected to the outer wall of the pump shaft near its bottom end.

[0011] In a preferred embodiment, support assemblies are provided on both sides of the outer wall of the outer bushing, and the support assemblies include:

[0012] The mounting block is fixedly connected to one side of the outer wall of the outer bushing. Bolts are slidably connected inside the mounting block. Reinforcing strips are fixedly connected between two adjacent mounting blocks, and the reinforcing strips are fixedly connected to the outer bushing.

[0013] In a preferred embodiment, the cross-sectional shape of the reinforcing strip is arc-shaped, and the two mounting blocks are symmetrically arranged about the outer bushing.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model adopts a guide lubrication assembly to pour lubricating grease into the gap between the inner bushing and the pump shaft. The outer bushing supports the support ring, the support ring supports the guide ring, the guide ring supports the cover ring, and the cover ring and guide ring guide and limit the lubricating grease, so that the lubricating grease can fully lubricate the connection between the pump shaft and the inner bushing and avoid the waste of lubricating grease.

[0016] 2. This utility model uses bolts to thread the mounting block to the pump shaft, so that the mounting block is fixedly installed on the outer wall of the cooling pump body. The mounting block supports the reinforcing strip to prevent the outer shaft sleeve from shifting or shaking, making the outer shaft sleeve more stable in use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation structure of the guide-type shaft bearing for the internal combustion engine cooling water pump of this utility model.

[0018] Figure 2 This is a schematic diagram of the overall structure of the guide-type shaft bearing for the internal combustion engine cooling water pump of this utility model.

[0019] Figure 3 This is a partial structural diagram of the connection between the support ring and the guide ring of this utility model.

[0020] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] The attached diagram is labeled as follows: 1. Outer bushing; 2. Support ring; 3. Flow guide ring; 4. Cover ring; 5. Inner bushing; 6. Pump shaft; 7. Cooling pump body; 8. Mounting block; 9. Bolt; 10. Reinforcing strip. Detailed Implementation

[0022] 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.

[0023] As attached Figure 1 - Appendix Figure 4 The diagram shows a guide-type shaft bearing for an internal combustion engine cooling water pump. This guide-type shaft bearing for an internal combustion engine cooling water pump is equipped with a guide lubrication assembly. The guide lubrication assembly enables the cover ring 4 and the guide ring 3 to guide and limit the lubricating grease, so that the lubricating grease can fully lubricate the connection between the pump shaft 6 and the inner bushing 5, and avoid the waste of lubricating grease. The specific structure of the guide lubrication assembly is as follows.

[0024] In this embodiment, as shown in the appendix Figure 1 - Appendix Figure 3 As shown, a support ring 2 is fixedly connected to the upper surface of the outer bushing 1. A guiding lubrication assembly is installed inside the support ring 2. The guiding lubrication assembly includes: a guide ring 3, fixedly connected to the inner wall of the support ring 2; a cover ring 4 on the upper surface of the guide ring 3; and an inner bushing 5, rotatably mounted on the inner wall of the outer bushing 1. The cross-sectional shape of the support ring 2 is annular, and the height of the guide ring 3 is greater than the height of the support ring 2. The cross-sectional shape of the cover ring 4 is annular, and the cross-sectional area of ​​the cover ring 4 is greater than the cross-sectional area of ​​the guide ring 3. A gap is provided between the inner bushing 5 and the cover ring 4.

[0025] In this embodiment, as shown in the appendix Figure 1 - Appendix Figure 2 As shown, the pump shaft 6 is rotatably connected inside the inner bushing 5, and the cooling pump body 7 is rotatably connected to the outer wall of the pump shaft 6 near its bottom end, so that the pump shaft 6 can be supported by the cooling pump body 7. The pump shaft 6 is rolled inside the inner bushing 5 to ensure that the pump shaft 6 can rotate stably.

[0026] In this technology, the guide-type shaft bearing for the internal combustion engine cooling water pump is used by supporting the pump shaft 6 through the cooling pump body 7. The pump shaft 6 is rolled inside the inner bushing 5. Then, lubricating grease is poured into the gap between the inner bushing 5 and the pump shaft 6. The outer bushing 1 supports the support ring 2, the support ring 2 supports the guide ring 3, and the guide ring 3 supports the cover ring 4. The cover ring 4 and the guide ring 3 guide and limit the lubricating grease to prevent it from overflowing and ensure that the lubricating grease fully lubricates the connection between the pump shaft 6 and the inner bushing 5.

[0027] In this embodiment, as shown in the appendix Figure 4 As shown, support assemblies are provided on both sides of the outer wall of the outer bushing 1. The support assemblies include: mounting blocks 8, which are fixedly connected to one side of the outer wall of the outer bushing 1. Bolts 9 are slidably connected inside the mounting blocks 8. Reinforcing strips 10 are fixedly connected between adjacent mounting blocks 8 and the reinforcing strips 10 are fixedly connected to the outer bushing 1. The cross-sectional shape of the reinforcing strips 10 is arc-shaped, and the two mounting blocks 8 are symmetrically arranged about the outer bushing 1.

[0028] In this technology, the guide-type shaft bearing for the internal combustion engine cooling water pump is used by threading the mounting block 8 to the pump shaft 6 with bolts 9. This ensures that the mounting block 8 is firmly fixed to the outer wall of the cooling pump body 7 under the pressure of the bolts 9. The mounting block 8 supports the outer bushing 1 and also supports the reinforcing strip 10. The reinforcing strip 10 provides firm support to the edge of the outer bushing 1, preventing the outer bushing 1 from shifting or shaking, thus making the outer bushing 1 more stable in use.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flow-guided shaft bearing for an internal combustion engine cooling water pump, comprising an outer bushing (1), characterized in that: A support ring (2) is fixedly connected to the upper surface of the outer bushing (1), and a guide lubrication assembly is installed inside the support ring (2). The guide lubrication assembly includes: A flow guide ring (3) is fixedly connected to the inner wall of the support ring (2), and a cover ring (4) is attached to the upper surface of the flow guide ring (3). The inner bushing (5) is rotatably mounted on the inner wall of the outer bushing (1).

2. The guide-type shaft bearing for an internal combustion engine cooling water pump according to claim 1, characterized in that: The cross-sectional shape of the support ring (2) is circular, and the height of the guide ring (3) is higher than the height of the support ring (2).

3. The guide-type shaft bearing for an internal combustion engine cooling water pump according to claim 1, characterized in that: The cover ring (4) has a circular cross-sectional shape, and the cross-sectional area of ​​the cover ring (4) is greater than the cross-sectional area of ​​the guide ring (3).

4. A guide-type shaft bearing for an internal combustion engine cooling water pump according to claim 1, characterized in that: The cross-sectional shape of the cover ring (4) is circular, and there is a gap between the inner bushing (5) and the cover ring (4).

5. A flow-guided shaft bearing for an internal combustion engine cooling water pump according to claim 1, characterized in that: The pump shaft (6) is rotatably connected inside the inner bushing (5), and the cooling pump body (7) is rotatably connected to the outer wall of the pump shaft (6) near its bottom end.

6. A flow-guided shaft bearing for an internal combustion engine cooling water pump according to claim 1, characterized in that: The outer bushing (1) has support components on both sides of its outer wall, and the support components include: Mounting block (8) is fixedly connected to one side of the outer wall of outer bushing (1). Bolt (9) is slidably connected inside the mounting block (8). Reinforcing strip (10) is fixedly connected between two adjacent mounting blocks (8). The reinforcing strip (10) is fixedly connected to the outer bushing (1).

7. A flow-guided shaft bearing for an internal combustion engine cooling water pump according to claim 6, characterized in that: The cross-sectional shape of the reinforcing strip (10) is arc-shaped, and the two mounting blocks (8) are symmetrically arranged about the outer bushing (1).