Water seal and water pump

Abstract

The utility model relates to the technical field of water pumps, in particular to a water seal and a water pump. The water seal comprises a static ring and a movable ring; the static ring is arranged on a sealing seat, the movable ring is arranged on a transmission seat, the transmission seat is used for driving the movable ring to rotate relative to the static ring, and the static ring and the movable ring are arranged at intervals in the axis direction of the static ring. The face, facing the static ring, of the movable ring comprises at least one first water storage tank and at least two dirt containing tanks, and the dirt containing tanks are located on the two sides of the first water storage tank. The side, facing the movable ring, of the static ring comprises at least one first protruding part, the at least one first protruding part is arranged in a first water storage tank, and a gap exists between the first protruding part and the inner wall of the first water storage tank. According to the water seal, the runner formed between the movable ring and the static ring is long, and the risk that cooling liquid leaks through the combination face is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a water seal and a water pump. Background Art

[0002] As the heart of the diesel engine cooling system, the water pump plays a vital role in the thermal management of the diesel engine. Water pump leakage has always been a normal fault of the engine. As an important sealing component in the water pump, the reliability of the water seal has a direct impact on whether the water pump leaks. The water seal is sealed by the joint surface of the dynamic ring and the static ring, and the joint surface is always kept in a fitted state.

[0003] In the prior art, the flow passage of the joint surface between the dynamic ring and the static ring is short and the flow resistance is small, and the coolant is easily leaked from the joint surface under the action of pressure. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a water seal and a water pump, wherein the flow channel formed between the dynamic ring and the static ring included in the water seal is longer, thereby reducing the risk of leakage of the coolant through the joint surface.

[0005] In the first aspect, the water seal provided by the embodiment of the utility model includes a static ring and a dynamic ring; the static ring is arranged on a sealing seat, and the dynamic ring is arranged on a transmission seat, and the transmission seat is used to drive the dynamic ring to rotate relative to the static ring, wherein: along the axial direction of the static ring, the static ring and the dynamic ring are arranged at intervals, and the side of the dynamic ring facing the static ring includes at least one first water storage tank and at least two sewage tanks, and the at least two sewage tanks are located on both sides of the at least one first water storage tank; the side of the static ring facing the dynamic ring includes at least one first protrusion, and the at least one first protrusion is arranged on the first water storage tank, and there is a gap between the first protrusion and the inner wall of the first water storage tank.

[0006] The water seal in the present application, the arrangement of at least one protrusion and at least one first water storage tank, can increase the length of the gap formed between the dynamic ring and the static ring, that is, increase the length of the joint surface between the dynamic ring and the static ring, increase the flow resistance of the coolant when it flows through the dynamic ring and the static ring, and reduce the risk of coolant leakage. And when the coolant flows between the dynamic ring and the static ring, due to the arrangement of at least one first water storage tank and at least one first protrusion, the path of the coolant is at least partially bent, which can also increase the flow resistance of the coolant when it flows through the dynamic ring and the static ring, further reducing the risk of coolant leakage.

[0007] It is worth mentioning that the impurities contained in the coolant will enter into at least two dirt collecting tanks to reduce the possibility of the impurities in the coolant scratching the side of the stationary ring facing the dynamic ring, and the side of the dynamic ring facing the stationary ring.

[0008] In one embodiment, along the axial direction of the stationary ring, the depth of the dirt receiving tank is less than the depth of the first water storage tank.

[0009] In one embodiment, there is one first water storage tank and two sewage tanks, and the two sewage tanks are located on both sides of the first water storage tank.

[0010] In one embodiment, there are two first water storage tanks and two sewage tanks, and the two first water storage tanks are located between the two sewage tanks.

[0011] In one embodiment, the side of the static ring facing the dynamic ring includes at least one second water storage tank, the side of the dynamic ring facing the static ring includes at least one second protrusion, and the second water storage tank is used to accommodate the second protrusion.

[0012] In one embodiment, in a projection of the moving ring toward the stationary ring, the first water storage tank and the second water storage tank do not overlap.

[0013] In a second aspect, the present application provides a water pump, comprising the water seal in any technical solution of the first aspect, the water pump further comprising a rotating shaft, the transmission seat being arranged on the rotating shaft. The beneficial effects produced by the water pump are the same as those of the water seal, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a water seal provided in an embodiment of the utility model;

[0015] Figure 2 A schematic diagram of a partial structure of a water seal provided in an embodiment of the utility model;

[0016] Figure 3 A schematic diagram of another partial structure of a water seal provided in an embodiment of the utility model;

[0017] Figure 4 A schematic diagram of another partial structure of a water seal provided in an embodiment of the utility model.

[0018] Icon: 10-dynamic ring; 11-first water storage tank; 12-sewage tank; 13-second protrusion; 20-static ring; 21-first protrusion; 22-second water storage tank. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The water seal provided by the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.

[0021] Figure 1 A schematic diagram of the structure of a water seal provided in an embodiment of the utility model; Figure 2 A partial structural schematic diagram of a water seal provided by an embodiment of the utility model. Figure 1 and Figure 2 , the water seal provided in the embodiment of the utility model includes a static ring 20 and a dynamic ring 10; the static ring 20 is arranged on a sealing seat, and the dynamic ring 10 is arranged on a transmission seat, and the transmission seat is used to drive the dynamic ring 10 to rotate relative to the static ring 20, wherein: along the axial direction of the static ring 20, the static ring 20 and the dynamic ring 10 are arranged at intervals, and the side of the dynamic ring 10 facing the static ring 20 includes at least one first water storage tank 11 and at least two sewage tanks 12, and the at least two sewage tanks 12 are located on both sides of the at least one first water storage tank 11; the side of the static ring 20 facing the dynamic ring 10 includes at least one first protrusion 21, and the at least one first protrusion 21 is arranged on the first water storage tank 11, and there is a gap between the first protrusion 21 and the inner wall of the first water storage tank 11.

[0022] The water seal in the present application, the provision of at least one protrusion and at least one first water storage tank 11, can increase the length of the gap formed between the dynamic ring 10 and the static ring 20, that is, increase the length of the joint surface between the dynamic ring 10 and the static ring 20, increase the flow resistance of the coolant when it flows through the dynamic ring 10 and the static ring 20, and reduce the risk of coolant leakage. And when the coolant flows between the dynamic ring 10 and the static ring 20, due to the provision of at least one first water storage tank 11 and at least one first protrusion 21, the path of the coolant is at least partially bent, which can also increase the flow resistance of the coolant when it flows through the dynamic ring 10 and the static ring 20, and further reduce the risk of coolant leakage. Among them, the dynamic ring 10 and the static ring 20 located on both sides of the first water storage tank 11 can be regarded as two joint surfaces, and the two joint surfaces can also reduce

[0023] It is worth mentioning that the impurities contained in the coolant will enter into at least two dirt receiving tanks 12 to reduce the possibility of the impurities in the coolant scratching the side of the stationary ring 20 facing the dynamic ring 10 and the side of the dynamic ring 10 facing the stationary ring 20.

[0024] In one embodiment, along the axis direction of the stationary ring 20, the depth of the dirt receiving tank 12 is less than the depth of the first water storage tank 11. While ensuring the length of the coolant flow path between the stationary ring 20 and the dynamic ring 10, it can also ensure that the impurities in the coolant will enter the dirt receiving tank 12 under the action of pressure, and the impurities will be acted on the side wall of the dirt receiving tank 12 by the centrifugal force of the rotation of the dynamic ring 10, preventing the impurities from entering between the dynamic ring 10 and the stationary ring 20 again.

[0025] In one embodiment, there may be one first water storage tank 11 and two dirt storage tanks 12, and the two dirt storage tanks 12 are located on both sides of the first water storage tank 11. Providing one first water storage tank 11 and two dirt storage tanks 12 on the side of the moving ring 10 facing the stationary ring 20 can ensure the strength of the moving ring 10 and increase the length of the gap between the moving ring 10 and the stationary ring 20, thereby increasing the resistance of the coolant flow.

[0026] Figure 3 This is another partial structural diagram of a water seal provided in an embodiment of the utility model. Figure 3 In some other embodiments, there may be two first water storage tanks 11, and the two first water storage tanks 11 are located between the two sewage tanks 12. When there are two first water storage tanks 11, there may also be two first protrusions 21. The provision of two first water storage tanks 11 can further increase the length of the gap between the dynamic ring 10 and the static ring 20, thereby increasing the resistance to the flow of the coolant. In addition, at this time, the corresponding surfaces between the dynamic ring 10 and the static ring 20 can also be understood as multiple, that is, in addition to the surfaces of the dynamic ring 10 and the static ring 20 perpendicular to the axial direction of the static ring 20, the inner wall of the first water storage tank 11 and the surfaces corresponding to the first protrusions 21 are also the corresponding surfaces of the dynamic ring 10 and the static ring 20. When any one of the corresponding surfaces is damaged, it will not affect the combination between the other surfaces, thereby improving the sealing between the dynamic ring 10 and the static ring 20.

[0027] In the above embodiment, the number of the first water storage tanks 11 included in the moving ring 10 can also be three, four or five, as long as the strength of the moving ring 10 can be guaranteed. Correspondingly, the number of the sewage tanks 12 can also be three, four or five.

[0028] Figure 4 This is another partial structural diagram of a water seal provided in an embodiment of the utility model. Figure 4In one embodiment, the side of the stationary ring 20 facing the moving ring 10 includes at least one second water storage tank 22, and the side of the moving ring 10 facing the stationary ring 20 includes at least one second protrusion 13, and the second water storage tank 22 is used to accommodate the second protrusion 13. It can be understood that the moving ring 10 and the stationary ring 20 are staggered and inserted, but there is no contact between the moving ring 10 and the stationary ring 20. In this arrangement, the path for the coolant to flow between the moving ring 10 and the stationary ring 20 is further increased, and the sealing between the moving ring 10 and the stationary ring 20 can also be improved.

[0029] It is worth mentioning that the method of providing a first water storage tank 11 on the dynamic ring 10 and a second water storage tank 22 on the static ring 20 has relatively lower strength requirements on the dynamic ring 10 and the static ring 20 compared to the method of providing two water storage tanks on the dynamic ring 10 or the static ring 20.

[0030] In one embodiment, in the projection of the moving ring 10 toward the stationary ring 20, the first water storage tank 11 and the second water storage tank 22 do not overlap. This ensures that when the coolant passes between the moving ring 10 and the stationary ring 20, the path of the coolant is unidirectional, and no diversion occurs due to the overlap of the first water storage tank 11 and the second water storage tank 22.

[0031] The present application also provides a water pump, which includes a rotating shaft and a water seal, a transmission seat is arranged on the rotating shaft, the rotating shaft drives the transmission seat to rotate, and the transmission seat drives the dynamic ring 10 to rotate relative to the static ring 20. A curved flow channel for the flow of coolant is formed between the static ring 20 and the dynamic ring 10 to increase the flow resistance of the coolant, and each section of the flow channel is a bonding surface between the dynamic ring 10 and the static ring 20. When one bonding surface is damaged, it does not affect the other bonding surfaces, thereby improving the sealing performance.

[0032] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A water seal, characterized in that: include: Static ring and dynamic ring; The stationary ring is arranged on the sealing seat, and the dynamic ring is arranged on the transmission seat, and the transmission seat is used to drive the dynamic ring to rotate relative to the stationary ring, wherein: Along the axial direction of the stationary ring, the stationary ring and the dynamic ring are arranged at intervals, and a side of the dynamic ring facing the stationary ring includes at least one first water storage tank and at least two sewage tanks, and the at least two sewage tanks are located on both sides of the at least one first water storage tank; The side of the stationary ring facing the dynamic ring includes at least one first protrusion, and the at least one first protrusion is arranged in the first water storage tank, and there is a gap between the first protrusion and the inner wall of the first water storage tank.

2. The water seal according to claim 1, characterized in that: Along the axial direction of the stationary ring, the depth of the dirt receiving tank is less than the depth of the first water storage tank.

3. The water seal according to claim 1, characterized in that: There is one first water storage tank and two sewage tanks, and the two sewage tanks are located on both sides of the first water storage tank.

4. The water seal according to claim 1, characterized in that: There are two first water storage tanks and two sewage tanks, and the two first water storage tanks are located between the two sewage tanks.

5. The water seal according to claim 1, characterized in that: The side of the stationary ring facing the moving ring includes at least one second water storage tank, the side of the moving ring facing the stationary ring includes at least one second protrusion, and the second water storage tank is used to accommodate the second protrusion.

6. The water seal according to claim 5, characterized in that In a projection of the moving ring on one side facing the stationary ring, the first water storage tank and the second water storage tank do not overlap.

7. A water pump, characterized in that: The water pump comprises the water seal as claimed in any one of claims 1 to 6, wherein the water pump further comprises a rotating shaft, and the transmission seat is arranged on the rotating shaft.

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