A sealing ring structure for an automotive hydraulic pump body

Abstract

This utility model provides a sealing ring structure for an automotive hydraulic pump body, comprising: a mounting ring, a sealing mechanism on the inner surface of the mounting ring, the sealing mechanism including a sealing element for sealing the pump body, a first reinforcing mechanism including an inner magnetic ring connected to the inner surface of the sealing element, an outer rubber ring connected to the inner surface of the sealing element near the outside, an inner rubber ring connected to the inner surface of the sealing element near the inside, compression rings connected to the surfaces of both the outer and inner rubber rings, a pushing ring connected to the surface of the inner magnetic ring, the pushing ring connected to the surface of the compression ring, an outer magnetic ring connected to the inner surface of the mounting ring, and a main lip connected to the bottom of the sealing element. This utility model provides a sealing ring structure for an automotive hydraulic pump body that, through the sealing element, can seal the hydraulic pump shaft while preventing hydraulic oil leakage and extrusion of the sealing element through the magnetic force of the inner magnetic ring and the pressure expansion of the second reinforcing mechanism.

Description

Technical Field

[0001] This utility model relates to the field of automotive hydraulic pump body sealing technology, and in particular to a sealing ring structure for an automotive hydraulic pump body. Background Technology

[0002] The automotive hydraulic pump body is the power source of the hydraulic system, which converts the mechanical energy of the engine into hydraulic energy through mechanical motion. Its technological progress closely follows the trend of "high pressure, intelligence, and low energy consumption". With the increasing integration requirements of new energy vehicles, electro-hydraulic hybrid pump bodies and digital hydraulic technology will become the focus of future research and development.

[0003] To prevent hydraulic oil from leaking from the hydraulic pump, sealing rings are installed at various sealing interfaces. However, when the system pressure exceeds the extrusion resistance of the O-rings, the rubber can be squeezed into the sealing gap, creating a tear and causing hydraulic oil leakage. This extrusion phenomenon is more likely to occur in dynamic seals, leading to a decrease in seal reliability.

[0004] Therefore, it is necessary to provide a sealing ring structure for an automotive hydraulic pump body to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a sealing ring structure for an automotive hydraulic pump body, which solves the problem of easy extrusion and leakage under high pressure.

[0006] To solve the above technical problems, this utility model provides a sealing ring structure for an automotive hydraulic pump body, comprising: a mounting ring, wherein a sealing mechanism is provided on the inner surface of the mounting ring, the sealing mechanism including a sealing element, the sealing element being used to seal the pump body;

[0007] A first reinforcing mechanism, comprising an inner magnetic ring connected to the inner surface of the seal.

[0008] Preferably, an outer rubber ring is connected to the inner surface of the seal near the outside, and an inner rubber ring is connected to the inner surface of the seal near the inside. Both the outer rubber ring and the inner rubber ring are connected to a compression ring.

[0009] Preferably, a pushing ring is connected to the surface of the inner magnetic ring, the pushing ring is connected to the surface of the compression ring, and an outer magnetic ring is connected to the inner surface of the mounting ring.

[0010] Preferably, the bottom of the seal is provided with a second reinforcing mechanism, the second reinforcing mechanism including a main lip, the main lip being connected to the bottom of the seal.

[0011] Preferably, the outer surface of the bottom of the seal is connected to a secondary lip, the bottom of the seal is connected to an inner lip, and the interior of the bottom of the seal is connected to an expansion channel.

[0012] Preferably, the outer surface of the seal is provided with a filtering mechanism, the filter screen includes a filter screen, the filter screen is installed on the surface of one end of the seal, and a rotating plate is connected to the surface of the filter screen.

[0013] Compared with related technologies, the sealing ring structure of the automotive hydraulic pump body provided by this utility model has the following beneficial effects:

[0014] This utility model provides a sealing ring structure for an automotive hydraulic pump body. The sealing element can seal the hydraulic pump shaft, while the magnetic force of the inner magnetic ring and the pressure expansion of the second reinforcing mechanism can prevent hydraulic oil from flowing out and prevent the sealing element from being squeezed out. Attached Figure Description

[0015] Figure 1 A schematic diagram of the first embodiment of a sealing ring structure for an automotive hydraulic pump body provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the structure.

[0017] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0018] Figure 4 This utility model provides a schematic diagram of the second embodiment of the sealing ring structure of an automotive hydraulic pump body.

[0019] Numbered in the diagram: 1. Mounting ring,

[0020] 2. Sealing mechanism; 21. Sealing element; 22. Outer rubber ring; 23. Inner rubber ring.

[0021] 3. First reinforcing mechanism; 31. Compression ring; 32. Pushing ring; 33. Inner magnetic ring; 34. Outer magnetic ring.

[0022] 4. Secondary reinforcement mechanism; 41. Secondary lip; 42. Primary lip; 43. Inner lip; 44. Expansion channel.

[0023] 5. Filtration mechanism, 51. Filter screen, 52. Rotating plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] First Embodiment

[0026] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1A schematic diagram of the first embodiment of a sealing ring structure for an automotive hydraulic pump body provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the structure. Figure 3 for Figure 2 The enlarged schematic diagram of part A is shown. A sealing ring structure for an automotive hydraulic pump body includes: a mounting ring 1, wherein a sealing mechanism 2 is provided on the inner surface of the mounting ring 1, and the sealing mechanism 2 includes a sealing element 21, which is used to seal the pump body;

[0027] The first reinforcing mechanism 3 includes an inner magnetic ring 33, which is connected to the inner surface of the seal 21.

[0028] The mounting ring 1 is ring-shaped with an annular groove in its inner ring. The sealing mechanism 2 seals the connection of the hydraulic pump shaft. The seal 21 can be an O-ring, lip ring, or mechanical seal, preferably an O-ring made of nitrile rubber, which has excellent oil resistance and good resistance to mineral oil, lubricating oil, and hydraulic oil. The seal 21 is installed inside the annular groove of the inner ring of the mounting ring 1. The mounting ring 1 is fixedly installed at the connection of the hydraulic shaft, and the seal 21 is connected to the surface of the shaft. The seal at the connection is achieved through elasticity. The first reinforcing mechanism 3 strengthens the sealing performance of the seal 21 under high pressure while preventing the seal 21 from being squeezed out. There are two inner magnetic rings 33, both of which are ring-shaped and are fixedly connected to both ends of the inner surface of the seal 21.

[0029] An outer rubber ring 22 is connected to the inner surface of the seal 21 near the outside, and an inner rubber ring 23 is connected to the inner surface of the seal 21 near the inside. Both the outer rubber ring 22 and the inner rubber ring 23 are connected to a compression ring 31.

[0030] Both the outer rubber ring 22 and the inner rubber ring 23 are ring-shaped. The diameter of the outer rubber ring 22 is larger than that of the inner rubber ring 23. It is installed on the inner surface of the outer ring of the seal 21, while the inner rubber ring 23 is installed on the inner surface of the inner ring of the seal 21. It has a high elastic deformation capacity.

[0031] The inner magnetic ring 33 is connected to a push ring 32, which is connected to the surface of the compression ring 31. The inner surface of the mounting ring 1 is connected to an outer magnetic ring 34.

[0032] The number of compression rings 31, pushing rings 32, and inner magnetic rings 33 are all two and ring-shaped. The two compression rings 31 are fixedly connected to the adjacent surfaces of the outer rubber ring 22 and the inner rubber ring 23, respectively. The two pushing rings 32 are fixedly connected to the surfaces of the two inner magnetic rings 33, and the upper and lower ends of the adjacent surfaces of the two pushing rings 32 and the left and right surfaces of the adjacent surfaces of the two compression rings 31 are all beveled. The two outer magnetic rings 34 are fixedly installed on the inner surfaces of the slots in the inner ring of the mounting ring 1. The inner magnetic rings 33 and the outer magnetic rings 34 have opposite magnetic forces, thus the inner magnetic rings 33 and the outer magnetic rings 34... A magnetic force is generated between the two inner magnetic rings 33 and the two outer magnetic rings 34, respectively, to attract the two inner magnetic rings 33 and the two outer magnetic rings 34, thus sealing the connection between the seal 21 and the mounting ring 1. When the liquid pressure breaks through the magnetic force between the inner magnetic rings 33 and the outer magnetic rings 34, it enters between the mounting ring 1 and the seal 21. The two inner magnetic rings 33 then drive the push ring 32 to move inward, and exert an upward and downward thrust on the two extrusion rings 31 on the surfaces of the outer rubber ring 22 and the inner rubber ring 23, respectively, causing the outer rubber ring 22 and the inner rubber ring 23 to deform, thus sealing the seal 21 with the inner surface of the outer ring of the mounting ring 1 and sealing the seal 21 with the rotating shaft.

[0033] The bottom of the seal 21 is provided with a second reinforcing mechanism 4, which includes a main lip 42 connected to the bottom of the seal 21.

[0034] The secondary lip 41 is connected to the main lip 42 in a V-shape. When the hydraulic oil pressure is too high, it flows between the secondary lip 41 and the main lip 42 and applies pressure to the secondary lip 41 and the main lip 42. Under pressure, the main lip 42 expands towards the surface of the rotating shaft, preventing the hydraulic oil from flowing out from the connection between the main lip 42 and the rotating shaft.

[0035] The outer surface of the bottom of the seal 21 is connected to a secondary lip 41, the bottom of the seal 21 is connected to an inner lip 43, and the interior of the bottom of the seal 21 is connected to an expansion channel 44.

[0036] When hydraulic oil enters the expansion channel 44, it applies pressure to the expansion channel 44, causing the expansion channel 44 to expand and block it from the surface of the rotating shaft, forming two layers of protection and improving the sealing ability of the seal 21.

[0037] The working principle of the sealing ring structure of the automotive hydraulic pump body provided by this utility model is as follows:

[0038] During normal operation, the elasticity of the seal 21 and the magnetic force of the inner magnetic ring 33 attract each other, tightly connecting the seal 21 with the mounting ring 1 and the surface of the hydraulic pump shaft to form a seal, preventing hydraulic oil leakage. When the hydraulic pressure is too high, the hydraulic pressure passes through the gap between the seal 21 and the mounting ring 1, and through the space between the inner magnetic ring 33 and the outer magnetic ring 34. The inner magnetic ring 33 then drives the push ring 32 to move inward, connecting the push ring 32 with the compression rings 31 on the surfaces of the outer rubber ring 22 and the inner rubber ring 23, respectively, giving the two compression rings 31 a thrust. The two compression rings 31 then exert a thrust on the outer rubber ring 22. The outer rubber ring 22 and the inner rubber ring 23 are squeezed together, and the outer rubber ring 22 and the inner rubber ring 23 are deformed under pressure. The outer rubber ring 22 and the inner rubber ring 23 respectively block the connection between the outer ring of the seal 21 and the inner ring of the mounting ring 1 and the connection between the inner ring of the seal 21 and the surface of the rotating shaft, preventing hydraulic oil from flowing out of the gap. At the same time, the hydraulic oil flows to the space between the secondary lip 41 and the main lip 42. The main lip 42 is compressed and expands, making close contact with the inner surface of the rotating shaft, preventing the hydraulic oil from passing through the gap between the seal 21 and the rotating shaft, and the hydraulic oil enters the interior of the expansion channel 44. The inner lip 43 is compressed and expands, preventing the hydraulic oil passing through the main lip 42 from flowing out.

[0039] Compared with related technologies, the sealing ring structure of the automotive hydraulic pump body provided by this utility model has the following beneficial effects:

[0040] This utility model provides a sealing ring structure for an automotive hydraulic pump body. The sealing element 21 can seal the hydraulic pump shaft, while the magnetic force of the inner magnetic ring 33 and the pressure expansion of the second reinforcing mechanism 4 can prevent hydraulic oil from flowing out and prevent the sealing element 21 from being squeezed out.

[0041] Second Embodiment

[0042] Please refer to the following: Figure 4 Based on the sealing ring structure of an automotive hydraulic pump body provided in the first embodiment of this application, the second embodiment of this application proposes another sealing ring structure for an automotive hydraulic pump body. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0043] Specifically, the second embodiment of this application provides a different sealing ring structure for an automotive hydraulic pump body. In this sealing ring structure, a filter mechanism 5 is provided on the outer surface of the sealing member 21. The filter screen 51 includes a filter screen 51, which is installed on the surface of one end of the sealing member 21. A rotating plate 52 is connected to the surface of the filter screen 51.

[0044] The filter screen 51 is ring-shaped and made of polyurethane, which has high elasticity and wear resistance, high mechanical strength, and good oil and solvent resistance. The rotating plate 52 can be connected to the shaft of the hydraulic pump by fasteners. During operation, the shaft can drive the rotating plate 52 to rotate on the surface of the filter screen 51, thereby peeling off the impurities on the surface of the filter screen 51.

[0045] The working principle of the sealing ring structure of the automotive hydraulic pump body provided by this utility model is as follows:

[0046] When the hydraulic oil flows under pressure to the surface of the seal 21, it first passes through the surface of the filter screen 51 to filter impurities before flowing to the connection between the seal 21 and the rotating shaft. At the same time, the rotating shaft drives the rotating plate 52 connected to the surface of the filter screen 51 to rotate, scraping off the impurities adhering to the surface of the filter screen 51.

[0047] Compared with related technologies, the sealing ring structure of the automotive hydraulic pump body provided by this utility model has the following beneficial effects:

[0048] This utility model provides a sealing ring structure for an automotive hydraulic pump body. The filter screen 51 can prevent impurities from entering the expansion channel 44 and the connection gap between the seal 21, the mounting ring 1, and the rotating shaft. The rotating plate 52 can clean the surface impurities of the filter screen 51 and prevent clogging.

[0049] 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 content of this utility model specification and drawings, 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 sealing ring structure for an automotive hydraulic pump body, characterized in that, include: The mounting ring has a sealing mechanism on its inner surface, and the sealing mechanism includes a sealing element for sealing the pump body. A first reinforcing mechanism, comprising an inner magnetic ring connected to the inner surface of the seal; An outer rubber ring is connected to the inner surface of the seal near the outside, and an inner rubber ring is connected to the inner surface of the seal near the inside. Both the outer rubber ring and the inner rubber ring are connected to a compression ring. A push ring is connected to the surface of the inner magnetic ring, and the push ring is connected to the surface of the compression ring. An outer magnetic ring is connected to the inner surface of the mounting ring.

2. The sealing ring structure of an automotive hydraulic pump body according to claim 1, characterized in that, The bottom of the seal is provided with a second reinforcing mechanism, which includes a main lip connected to the bottom of the seal.

3. The sealing ring structure of an automotive hydraulic pump body according to claim 2, characterized in that, The outer surface of the bottom of the seal is connected to a secondary lip, the bottom of the seal is connected to an inner lip, and the interior of the bottom of the seal is connected to an expansion channel.

4. The sealing ring structure of an automotive hydraulic pump body according to claim 1, characterized in that, The outer surface of the seal is provided with a filtering mechanism, which includes a filter screen. The filter screen is installed on the surface of one end of the seal, and a rotating plate is connected to the surface of the filter screen.

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