Water pump water seal reinforced cooling structure and engine cooling water pump

Abstract

The utility model discloses a water pump water seal reinforced cooling structure and an engine cooling water pump, the water pump water seal reinforced cooling structure comprises a cooling water hole arranged on a pump body, the cooling water hole extends to a position above a dynamic and static ring friction surface, and a water outlet of the cooling water hole is aligned with the dynamic and static ring friction surface of the water pump water seal; a gasket is arranged on one side of the water pump water seal to increase the compensation capacity of the spring; in order to solve the problem of water leakage caused by insufficient cooling of the water seal and damage to the rubber corrugated pipe due to high temperature generated during operation of the water pump, the water seal cooling structure on the pump body is improved, the cooling effect on the water seal is enhanced, and the problem of water leakage caused by insufficient cooling of the water seal is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pump water seal structure improvement, and in particular relates to a water pump water seal enhanced cooling structure and an engine cooling water pump. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] As an important part of the engine cooling system, the water pump pressurizes the coolant and transfers it to the engine water channel to ensure that the coolant circulates in the cooling system, absorbs a large amount of heat generated during the operation of the engine, reduces the engine temperature, and realizes the normal operation of the engine. The water seal is a shaft sealing device that relies on a pair of end faces that slide relative to the water pump shaft to maintain engagement under the action of fluid pressure and the elastic force of the compensation mechanism and is equipped with an auxiliary seal to prevent the coolant in the water pump from leaking along the water pump shaft.

[0004] Existing water pump water seal cooling structure such as Figure 1 As shown, it includes a dynamic ring 4, a static ring 3, a rubber bellows 5 and a water seal spring 6. The water seal spring 6 is sleeved on the rubber bellows 5. The static ring 3 is fixed to the pump body 1 through a sealing seat 9. The end face of the dynamic ring 4 fits with the end face of the static ring 3. A cooling water hole 2 is provided on the pump body 1. The cooling water enters between the pump body and the water seal through the cooling water hole 2, so that the coolant continuously flows through the water seal, promotes the flow of coolant around the water seal, takes away the generated heat in time, and reduces the water seal temperature.

[0005] Figure 1 The water seal structure in the pump cannot ensure that the coolant accurately rushes to the relative sliding friction surface between the dynamic and static rings of the water seal. The coolant flowing out of the cooling water hole rebounds against the inner wall of the pump body and does not flow directly to the friction surface between the dynamic and static rings, which slows down the flow rate of the coolant around the water seal and reduces the flow rate. This can only take away part of the heat and does not have the best cooling effect on the water seal, causing the temperature to gradually rise until the rubber bellows is burned; in addition, when the rubber bellows is deformed due to high temperature, it may affect the compensation ability of the spring. Utility Model Content

[0006] The utility model aims to provide a water pump water seal enhanced cooling structure and an engine cooling water pump, aiming at the water pump having a water leakage problem caused by insufficient water seal cooling and high temperature damage to the rubber bellows during operation, by improving the water seal cooling structure on the pump body, the cooling effect on the water seal is enhanced, and the water leakage problem caused by insufficient water seal cooling is solved.

[0007] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] In a first aspect, an embodiment of the present utility model provides a water pump water seal enhanced cooling structure, including a cooling water hole provided on a pump body. The cooling water hole extends above the dynamic and static ring friction surface, and the water outlet of the cooling water hole is aligned with the dynamic and static ring friction surface of the water pump water seal; a gasket is provided on one side of the water pump water seal to increase the spring compensation ability.

[0009] As a further technical solution, the gasket is provided on the side of the water pump water seal close to the water seal impeller.

[0010] As a further technical solution, the cooling water hole is linear and is inclined on the pump body.

[0011] As a further technical solution, the extended part of the cooling water hole and the pump body are provided as an integral structure.

[0012] As a further technical solution, the water outlet of the cooling water hole is 1 - 2 cm away from the dynamic and static ring friction surface.

[0013] As a further technical solution, the water outlet of the cooling water hole has a conical structure.

[0014] As a further technical solution, the thickness of the gasket is 3 - 5 mm.

[0015] In a second aspect, an embodiment of the present utility model provides an engine cooling water pump, including the water pump water seal enhanced cooling structure described in the first aspect, and further including a pump body, a shaft-connected bearing, an impeller, and a gear. The shaft-connected bearing is provided in the pump body, and the rotating shafts at both ends of the shaft-connected bearing extend out from the pump body.

[0016] As a further technical solution, a water pump water seal is sleeved on the rotating shaft of the shaft-connected bearing.

[0017] As a further technical solution, one end of the rotating shaft of the shaft-connected bearing is connected to the impeller, and the other end is connected to the gear.

[0018] The beneficial effects of the above embodiments of the present utility model are as follows:

[0019] The water pump water seal cooling structure provided by the present utility model extends the cooling water hole on the pump body, enabling the coolant to more precisely align with the dynamic and static ring friction surface of the water seal, improving the flow rate and flow volume of the coolant around the water seal, removing the frictional heat generated by the high-speed relative sliding of the dynamic and static rings of the water seal, preventing the rubber bellows from being burned out by high temperature, and maximizing the enhanced cooling effect of the cooling water hole.

[0020] The water pump water seal cooling structure provided by the present utility model adds a gasket on the side of the water seal impeller, which not only increases the compensation ability of the water seal spring but also moves the water seal towards the gear end, enabling the coolant to directly align with the dynamic and static ring friction surfaces of the water seal and flow through the rubber bellows, removing more heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which form a part of this utility model, are used to provide a further understanding of the utility model. The schematic embodiments and descriptions thereof of the utility model are used to explain the utility model and do not constitute an improper limitation to the utility model.

[0022] Figure 1 is a schematic diagram of a water seal cooling structure of a water pump in the prior art;

[0023] Figure 2 is a schematic diagram of a water seal enhanced cooling structure of this utility model.

[0024] The schematic diagram is only for illustration purposes;

[0025] Among them, 1. pump body; 2. cooling water hole; 3. stationary ring; 4. rotating ring; 5. rubber bellows; 6. water seal spring; 7. cooling water rebound direction; 8. coupling bearing; 9. extended part of the cooling water hole; 10. cooling water outflow direction; 11. washer; 12. friction surface of the stationary and rotating rings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless otherwise specified, all technical and scientific terms used in this utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs.

[0027] Embodiment 1

[0028] The water seal cooling structure of a water pump in the prior art is as Figure 1 shown. The coolant flowing out of the cooling water hole 2 rebounds through the inner wall of the pump body, and the cooling water rebound direction 7 is as Figure 1 shown by the arrow in the figure. It does not directly flow to the friction surface of the stationary and rotating rings, resulting in a slower flow rate and a reduced flow of the coolant around the water seal. In this way, only part of the heat can be taken away, and the best cooling effect on the water seal is not achieved, resulting in a gradual increase in temperature until the rubber bellows is burned out.

[0029] In response to the above problems, in a typical implementation manner of this utility model, as Figure 2 shown, a water seal enhanced cooling structure of a water pump is provided, including a cooling water hole 2 provided on the pump body 1. The cooling water hole 2 extends above the friction surface 12 of the stationary and rotating rings, and the outlet of the cooling water hole 2 is aligned with the friction surface 12 of the water seal of the water pump; a washer 11 is provided on one side of the water seal of the water pump to increase the spring compensation ability.

[0030] In this embodiment, the washer 11 is arranged on the side of the water pump seal close to the seal impeller. The thickness of the washer is 3 - 5 mm, such that the rubber bellows 5 drives the spring to move 3 - 5 mm to the right. By adding a washer 11 on one side of the seal impeller, not only the compensation ability of the seal spring is increased, but also the seal moves towards the gear end, enabling the cooling water to directly align with the friction surface between the static and dynamic rings of the seal and flow through the rubber bellows, taking away more heat.

[0031] In this embodiment, the cooling water hole 2 is linear and is inclinedly arranged on the pump body 1. The outflow direction 10 of the cooling water at the water outlet of the cooling water hole 21 directly aligns with the friction surface between the static and dynamic rings of the seal. In order to further increase the flow rate of the cooling water at the water outlet of the cooling water hole 21, the water outlet of the cooling water hole can be set to be conical.

[0032] In this embodiment, the extended part 9 of the cooling water hole and the pump body 1 are arranged as an integral structure. By extending the cooling water hole on the pump body, the cooling water can more precisely align with the friction surfaces of the dynamic and static rings of the seal, increasing the flow rate and volume of the cooling water around the seal and maximizing the enhanced cooling effect of the cooling water hole.

[0033] In this embodiment, the water outlet of the cooling water hole is 1 - 2 cm away from the friction surface between the dynamic and static rings.

[0034] For the water pump seal enhanced cooling structure provided in this embodiment, when the water pump is operating, the coolant, through the action of the impeller, will pass the pressurized coolant through the cooling water holes in the pump body directly to the friction surface between the static and dynamic rings of the seal, enabling the heat generated on the friction surface to be taken away in a timely manner, reducing the temperature of the seal and minimizing the risk of seal leakage caused by the rubber bellows being burned out due to the increase in the seal temperature.

[0035] First, add a washer on one side of the seal impeller, which not only increases the compensation ability of the seal spring but also makes the seal move towards the gear end, allowing the coolant to directly align with the friction surfaces of the dynamic and static rings of the seal and flow through the rubber bellows, taking away more heat.

[0036] Second, extend the cooling water hole on the pump body, enabling the coolant to more precisely align with the friction surfaces of the dynamic and static rings of the seal, increasing the flow rate and volume of the coolant around the seal and maximizing the enhanced cooling effect of the cooling water hole.

[0037] Embodiment 2

[0038] In a typical embodiment of the present utility model, an engine cooling water pump is provided, which includes the water pump seal enhanced cooling structure described in Embodiment 1, and also includes a pump body, a shaft - connected bearing, an impeller, and a gear. The shaft - connected bearing 8 is arranged in the pump body, and both ends of the rotating shaft of the shaft - connected bearing 8 extend out from the pump body 1.

[0039] Further, a water pump water seal is sleeved on the rotating shaft of the shaft-connected bearing.

[0040] Further, one end of the rotating shaft of the shaft-connected bearing 8 is connected to the impeller, and the other end is connected to the gear.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water pump water seal enhanced cooling structure, characterized in that: It includes a cooling water hole arranged on the pump body, the cooling water hole extends to above the friction surface of the dynamic and static rings, and the water outlet of the cooling water hole is aligned with the friction surface of the dynamic and static rings of the water pump water seal; a gasket is arranged on one side of the water pump water seal to increase the spring compensation capacity.

2. The water pump water seal enhanced cooling structure according to claim 1, characterized in that: The gasket is arranged on one side of the water seal of the water pump close to the water seal impeller.

3. The water pump water seal enhanced cooling structure according to claim 1, characterized in that: The cooling water hole is linear and is arranged obliquely on the pump body.

4. The water pump water seal enhanced cooling structure according to claim 1, characterized in that: The extended portion of the cooling water hole and the pump body are arranged in an integrated structure.

5. The water pump water seal enhanced cooling structure according to claim 1, characterized in that: The outlet of the cooling water hole is 1-2 cm away from the friction surface of the dynamic and static rings.

6. The water pump water seal enhanced cooling structure according to claim 1, characterized in that: The water outlet of the cooling water hole is in a conical structure.

7. The water pump water seal enhanced cooling structure according to claim 1, characterized in that: The thickness of the gasket is 3-5 mm.

8. An engine cooling water pump, characterized in that: It comprises a water pump water seal enhanced cooling structure as described in any one of claims 1 to 7, and also comprises a pump body, a shaft bearing, an impeller and a gear, wherein the shaft bearing is arranged in the pump body, and both ends of the rotating shaft of the shaft bearing extend from the pump body.

9. The engine cooling water pump according to claim 8, characterized in that: A water pump water seal is sleeved on the rotating shaft of the shaft-connecting bearing.

10. The engine cooling water pump according to claim 8, characterized in that: One end of the rotating shaft of the shaft-connected bearing is connected to the impeller, and the other end is connected to the gear.

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