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CN-224214694-U - Combined pressure-resistant wear-resistant polyurethane multiple oil seal assembly

CN224214694UCN 224214694 UCN224214694 UCN 224214694UCN-224214694-U

Abstract

The utility model discloses a combined pressure-proof wear-resistant polyurethane multiple oil seal assembly which comprises a sealing ring and a butt joint ring, wherein the sealing ring and the butt joint ring are positioned on the outer side of a shaft rod, openings of the sealing ring and the butt joint ring are spliced in opposite directions, an elastic ring which is embedded with the butt joint ring is arranged in the butt joint ring, inclined rings which are symmetrically arranged are arranged on the elastic ring, and the two inclined rings are mutually far away from each other and are used for abutting against the inner wall of the sealing ring in a default state. According to the combined pressure-resistant and wear-resistant polyurethane multiple oil seal assembly, the effect of increasing the wear-resistant area and the buffer area is achieved by inserting the butt joint ring into the sealing ring, the butt joint ring and the sealing ring can keep stable contact and are not easy to slip under the effect that the elastic ring is positioned in the butt joint ring to realize the supporting function, the oil seal is enabled to obtain the buffer pressure-resistant space and the energy absorption effect of the elastic ring, the pressure resistance of the oil seal is further improved, meanwhile, the elastic potential energy of the elastic ring is utilized to enable the butt joint ring outside the machine body to have the function of an anti-collision framework, and the stability and the safety of the oil seal in the use process are improved.

Inventors

  • HE YI

Assignees

  • 南京厚孚机械科技有限公司

Dates

Publication Date
20260508
Application Date
20250523

Claims (10)

  1. 1. The utility model provides a modular withstand voltage wear-resisting polyurethane multiple oil blanket subassembly, includes axostylus axostyle (1), its characterized in that still includes sealing ring (2) and docking ring (3) that are located axostylus axostyle (1) outside, and the opening is pegged graft in opposite directions, be provided with in docking ring (3) with elasticity ring (4) of gomphosis thereof, be provided with symmetrical arrangement's inclined ring (42) on elasticity ring (4), two inclined ring (42) keep away from each other under the default and be used for contradicting sealing ring (2) inner wall.
  2. 2. The combined pressure-resistant and wear-resistant polyurethane multiple oil seal assembly according to claim 1, wherein the sealing ring (2) is provided with outer rings (21) which are symmetrically arranged, and one outer ring (21) is abutted against the side wall of the shaft rod (1).
  3. 3. A combined pressure-resistant and wear-resistant polyurethane multiple oil seal assembly according to claim 2, characterized in that the butt joint ring (3) is provided with an inner ring (31) which is positioned inside the two outer rings (21).
  4. 4. A combined pressure-resistant and wear-resistant polyurethane multiple oil seal assembly according to claim 3, wherein a snap ring (32) which is equidistantly arranged and is kept in interference with the inner side wall of the outer ring (21) is fixedly arranged on the outer side wall of the inner ring (31).
  5. 5. The combined pressure-resistant and wear-resistant polyurethane multiple oil seal assembly as claimed in claim 4, wherein an inner groove (22) which is embedded with a clamping ring (32) is formed in the inner side wall of the outer ring (21).
  6. 6. The combined pressure-resistant and wear-resistant polyurethane multiple oil seal assembly as claimed in claim 4, wherein the elastic ring (4) is provided with an elastic edge (41) which is in interference fit with the inner ring (31).
  7. 7. The combined pressure-resistant and wear-resistant polyurethane multiple oil seal assembly according to claim 5, wherein the outer side wall of the outer ring (21) is provided with a protrusion (23) which is arranged opposite to the inner groove (22).
  8. 8. The combined pressure-resistant and wear-resistant polyurethane multiple oil seal assembly as claimed in claim 5, wherein the outer ring (21) is a rubber ring made of polyurethane.
  9. 9. A modular pressure and wear resistant polyurethane multiple oil seal assembly in accordance with claim 5 wherein said snap ring (32) is embodied as a hard rubber ring.
  10. 10. A combined pressure and wear resistant polyurethane multiple oil seal assembly in accordance with claim 6 wherein said resilient edge (41) is embodied as a resilient metal sheet.

Description

Combined pressure-resistant wear-resistant polyurethane multiple oil seal assembly Technical Field The utility model relates to the technical field of oil seal assemblies, in particular to a combined pressure-resistant wear-resistant polyurethane multiple oil seal assembly. Background The oil seal is usually arranged between the shaft and the engine body shell for shaft movement, and is used for preventing engine oil for lubricating the shaft and parts from leaking, and the oil seal is usually composed of silicon rubber, polyurethane, polytetrafluoroethylene and acrylate rubber and is usually assembled in a closed ring shape. According to publication No. CN209688099U, publication No. 2019-11-26, there is disclosed a multi-seal oil seal comprising an annular rubber gasket having a conical elastic rubber cap, an elastic rubber tube and a part of annular groove in which a seal ring for reinforcing the sealing effect is fitted. In the prior art including the above patent, because the shaft member of some organism is used as the repeated vibration work, for example the metal head of quartering hammer or the member that is close to quartering hammer position, consequently the oil blanket under this kind of environment can receive radial direction's extrusion force or vibration force in the use, and the oil blanket is responsible for axial sealing work generally, when radial pressure appears, usually accompanies annular oil blanket somewhere deformation serious, causes the damage to the self intensity of oil blanket, and the compressive capacity of oil blanket is not strong, can also exist simultaneously that the external dirt that splashes striking damages the oil blanket, and then aggravates and cause the erosion to the oil blanket. Disclosure of utility model The utility model aims to provide a combined pressure-resistant wear-resistant polyurethane multiple oil seal assembly, which aims to solve the problems. In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a modular withstand voltage wear-resisting polyurethane multiple oil blanket subassembly, includes the axostylus axostyle, still includes sealing ring and the docking ring that is located the axostylus axostyle outside, and the opening peg graft in opposite directions, be provided with the elastic ring with it gomphosis in the docking ring, be provided with symmetrical arrangement's inclined ring on the elastic ring, two inclined rings keep away from each other and are used for contradicting the sealing ring inner wall under the default. Preferably, the sealing ring is provided with outer rings which are symmetrically arranged, and one outer ring is abutted against the side wall of the shaft rod. Preferably, the butt joint ring is provided with an inner ring positioned at the inner sides of the two outer rings. Preferably, the outer side wall of the inner ring is fixedly provided with snap rings which are equidistantly arranged and keep abutting against the inner side wall of the outer ring. Preferably, an inner groove which is embedded with the clamping ring is formed in the inner side wall of the outer ring. Preferably, the elastic ring is provided with an elastic edge which is in interference fit with the inner ring. Preferably, the outer side wall of the outer ring is provided with a protrusion arranged opposite to the inner groove. Preferably, the outer ring is a rubber ring made of polyurethane material. Preferably, the snap ring is specifically a hard rubber ring. Preferably, the elastic edge is specifically an elastic metal sheet. According to the technical scheme, the combined pressure-resistant wear-resistant polyurethane multiple oil seal assembly has the advantages that the effect of increasing the wear-resistant area and the buffer area is achieved by inserting the butt joint ring into the sealing ring, the butt joint ring and the sealing ring can keep stable contact and are not easy to slip under the supporting function of the elastic ring in the butt joint ring, the oil seal is enabled to obtain the pressure-resistant buffering space and the energy absorbing effect of the elastic ring, the pressure resistance of the oil seal is improved, meanwhile, the elastic potential energy of the elastic ring is utilized to enable the butt joint ring outside the machine body to have the function of an anti-collision framework, and the stability and safety of the oil seal in the use process are improved. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art. FIG. 1 is a schematic vi