Sealing ring for bearing seat
By introducing an annular elastic pleated airbag and piston ring structure into the bearing housing seal, the forced contact between the sealing lip and the shaft is achieved, solving the problem of insufficient sealing performance of the seal when the oil pressure changes, and enhancing the sealing and dustproof effects.
Patent Information
- Application Number
- CN202423302180.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing sealing rings lack a structure for adjusting the load-bearing capacity and cannot adapt to changes in oil pressure. This causes the sealing rings to easily become misaligned under excessive pressure, resulting in insufficient sealing performance.
A bearing housing sealing ring was designed, comprising a ring body, a sealing lip, and an annular elastic pleated air bladder. The expansion degree of the air bladder is adjusted by the piston ring to enhance the contact force between the sealing lip and the shaft body, thereby achieving adjustment of the oil pressure load capacity.
It improves the sealing performance and dustproof effect of the sealing ring, enhances the contact force between the sealing lip and the shaft, can adapt to changes in oil pressure, prevents misalignment, and improves the stability of the sealing ring in use.
Smart Images
Figure CN223894777U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sealing ring technical field especially, it relates to a bearing seat sealing ring. BACKGROUND
[0002] Generally, the shaft is installed in the bearing, the bearing is installed in the bearing seat, and sealing between the shaft and the bearing is required in the shaft end cover, and the commonly used sealing modes include: oil seal, packing seal, mechanical seal and the like.
[0003] The sealing ring is generally the sealing device of lubricating oil, is used for separating the structure that needs lubrication and transmission component in mechanical transmission structure, prevents the device of lubricating oil leakage, facilitates the friction loss reduction of kinetic energy in the transmission process of mechanical structure. But the existing sealing ring is usually fixed structure, lack the structure of adjusting the bearing degree, thereby cannot adjust the bearing degree with the change of oil pressure intensity in the process of using the sealing ring, make the sealing ring be dislocated under the action of pressure when the pressure that the sealing ring suffers is too big.
[0004] Therefore, it is necessary to provide a new bearing seat sealing ring to solve the above technical problems. INVENTION CONTENTS
[0005] In order to solve the above technical problems, the utility model provides a bearing seat sealing ring.
[0006] The utility model provides a bearing seat sealing ring, which comprises a ring body, a sealing lip A and a sealing lip B are fixedly embedded on the inner wall of the ring body, and the sealing lip B is provided with an annular elastic pleated air bag for abutting against the sealing lip B.
[0007] An annular gas storage cavity is formed in the ring body, and the bottom of the annular gas storage cavity is connected to the annular elastic pleated air bag through a plurality of annular gas guide pipes, and a piston ring for adjusting the expansion degree of the annular elastic pleated air bag is installed in the annular gas storage cavity.
[0008] Preferably, the connection between the sealing lip B and the ring body is elastically connected, and an annular semicircular groove is formed on the upper surface of the sealing lip B.
[0009] Preferably, the upper part of the elastic pleated air bag is an annular structure with a rectangular cross section, and the lower part of the elastic pleated air bag is an annular structure with a circular cross section, the two sides of the upper part of the elastic pleated air bag are respectively abutted against the inner wall of the ring body and the inner edge of the sealing lip B, and the upper surface of the upper part of the elastic pleated air bag is provided with a pleated surface, and the lower part of the elastic pleated air bag is fixedly embedded in the annular semicircular groove formed in the sealing lip B.
[0010] Preferably, a threaded through cavity penetrating the top of the ring body is arranged in the ring body above the annular gas storage cavity.
[0011] Preferably, the piston ring is in sliding connection with the annular gas storage cavity, and a rotationally connected threaded ring column is arranged on the upper surface of the piston ring, the threaded ring column is in threaded connection with the threaded through cavity of the ring body, and the top of the threaded ring column extends out of the ring body and is fixedly arranged with a rotating ring.
[0012] Preferably, a dustproof lip is arranged on the outer ring wall of the bottom of the ring body.
[0013] Compared with the related art, the sealing ring for bearing seat has the following beneficial effects:
[0014] The rotating ring of the utility model makes the threaded ring column rotate into the threaded through cavity downward, so that the gas in the annular gas storage cavity can be discharged into the annular elastic pleated air bag through the gas guide pipe by the pressing of the piston ring, which is simple and convenient, so that the upper part of the air bag of the elastic pleated air bag expands, the inner lip surface of the dustproof lip B and the inserted shaft body are in stronger abutting force due to the abutting of the two sides of the upper part of the air bag of the elastic pleated air bag with the inner ring wall of the ring body and the inner edge of the dustproof lip B, and the sealing property of the sealing ring is further enhanced, and the oil pressure bearing degree of the sealing ring is adjusted. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The structure schematic view of a preferred embodiment of the sealing ring for bearing seat is shown.
[0016] Figure 2 The exploded structure schematic view is shown. Figure 1 The exploded structure schematic view is shown.
[0017] Figure 3 The sectional structure schematic view is shown. Figure 1 The sectional structure schematic view is shown.
[0018] Figure 4 The sectional structure schematic view of the ring body is shown. Figure 3 The sectional structure schematic view of the ring body is shown.
[0019] In the drawing, 1 is a ring body, 1a is an annular gas storage cavity, 1b is a threaded through cavity, 1c is a gas guide pipe, 11 is a dustproof lip, 2 is a dustproof lip A, 3 is a dustproof lip B, 4 is an annular elastic pleated air bag, 5 is a piston ring, 51 is a threaded ring column, and 52 is a rotating ring. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.
[0021] The specific implementation of the utility model is described in detail below in combination with specific embodiments.
[0022] Please refer to Figures 1 to 4 The utility model discloses a kind of sealing rings for bearing seat, the sealing ring for bearing seat includes: ring body 1 and annular elastic pleated air bag 4.
[0023] In the embodiment of the utility model, please refer to Figure 1 And Figure 4 Sealing lip B3 is arranged in the inner circle wall of ring body 1, and annular elastic pleated air bag 4 is arranged in sealing lip B3 for abutting sealing lip B3, and the connection of sealing lip B3 and ring body 1 is elastically connected, and annular semicircular groove is formed in the upper surface of sealing lip B3.
[0024] The upper part capsule of annular elastic pleated air bag 4 is annular structure with rectangular cross section, and the lower part capsule of annular elastic pleated air bag 4 is annular structure with circular cross section, the upper part capsule of annular elastic pleated air bag 4 is abutted with the inner circle wall of ring body 1 and the inner edge of sealing lip B3 respectively, and the upper capsule surface of the upper part capsule of annular elastic pleated air bag 4 is provided with pleated surface, and the lower part capsule of annular elastic pleated air bag 4 is fixedly embedded in the annular semicircular groove of sealing lip B3.
[0025] Annular gas storage cavity 1a is formed in ring body 1, and the bottom of annular gas storage cavity 1a is communicated with annular elastic pleated air bag 4 through a plurality of annularly distributed gas guide pipes 1c, and piston ring 5 for adjusting the inflation degree of annular elastic pleated air bag 4 is further installed in annular gas storage cavity 1a.
[0026] It should be noted that annular elastic pleated air bag 4 is compressed by piston ring 5, so that the upper part capsule of annular elastic pleated air bag 4 is inflated, and because the upper part capsule of annular elastic pleated air bag 4 is abutted with the inner circle wall of ring body 1 and the inner edge of sealing lip B3 respectively, the inner lip surface of sealing lip B3 can be more strongly abutted with the inserted shaft, thereby enhancing the sealing property of the sealing ring, and the oil pressure carrying capacity of the sealing ring is also adjusted.
[0027] And in the embodiment, dust lip 11 is arranged on the outer circle wall of the bottom of ring body 1, so as to improve the dustproof effect of the sealing ring.
[0028] In the embodiment of the utility model, please refer to Figure 2 And Figure 3The ring body 1 above the annular gas storage cavity 1a is provided with a threaded through cavity 1b penetrating the top of the ring body 1, the piston ring 5 is slidably connected with the annular gas storage cavity 1a, and a threaded ring column 51 rotatably connected is arranged on the upper surface of the piston ring 5, the threaded ring column 51 is threadedly connected with the threaded through cavity 1b of the ring body 1, and the top of the threaded ring column 51 extends out of the ring body 1 and is fixedly provided with a rotating ring 52.
[0029] It should be noted that when the oil pressure bearing degree of the ring body 1 is adjusted, the rotating ring 52 is rotated to make the threaded ring column 51 rotate downward (or upward) along the threaded through cavity 1b, so that the gas in the annular gas storage cavity 1a is pressed by the piston ring 5 and discharged to the annular elastic pleated air bag 4 through the gas guide pipe 1c (or the gas in the annular elastic pleated air bag 4 is sucked back to the threaded through cavity 1b), which is simple and convenient to operate.
[0030] The working principle of the sealing ring for the bearing seat is as follows:
[0031] When the oil pressure bearing degree of the ring body 1 is adjusted, the rotating ring 52 is rotated to make the threaded ring column 51 rotate downward along the threaded through cavity 1b, so that the gas in the annular gas storage cavity 1a is pressed by the piston ring 5 and discharged to the annular elastic pleated air bag 4 through the gas guide pipe 1c, which is simple and convenient to operate, so that the upper part of the air bag of the elastic pleated air bag 4 is expanded, and the two sides of the upper part of the air bag of the elastic pleated air bag 4 are respectively abutted with the inner wall of the ring body 1 and the inner edge of the sealing lip B3, so that the inner lip surface of the sealing lip B3 is more strongly abutted with the inserted shaft body, and the sealing property of the sealing ring is further enhanced, and the oil pressure bearing degree of the sealing ring is also adjusted.
[0032] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.
Claims
1. A sealing ring for a bearing housing, characterized in that, Includes a ring body (1), on which sealing lips A (2) and sealing lips B (3) are fixedly fitted on the inner ring wall, and an annular elastic pleated airbag (4) for abutting against the sealing lip B (3) is provided inside the sealing lip B (3). The ring body (1) has an annular air storage chamber (1a) inside, and the bottom of the annular air storage chamber (1a) is connected to the annular elastic pleated air bag (4) through several annularly distributed air guide pipes (1c). The annular air storage chamber (1a) is also equipped with a piston ring (5) for adjusting the expansion degree of the annular elastic pleated air bag (4).
2. The bearing housing sealing ring according to claim 1, characterized in that, The connection between the sealing lip B (3) and the ring body (1) is set as an elastic connection, and the upper surface of the sealing lip B (3) is provided with an annular semi-circular groove.
3. The bearing housing seal ring according to claim 2, characterized in that, The upper part of the elastic pleated airbag (4) is a ring-shaped structure with a rectangular cross-section, and the lower part of the elastic pleated airbag (4) is a ring-shaped structure with a circular cross-section. The two sides of the upper part of the elastic pleated airbag (4) abut against the inner ring wall of the ring body (1) and the inner edge of the sealing lip B (3), respectively. The upper surface of the upper part of the elastic pleated airbag (4) is provided with a pleated surface. The lower part of the elastic pleated airbag (4) is fixedly fitted into the annular semi-circular groove opened in the sealing lip B (3).
4. The bearing housing seal ring according to claim 1, characterized in that, A threaded cavity (1b) is provided in the ring body (1) above the annular gas storage cavity (1a), penetrating the top of the ring body (1).
5. The bearing housing seal ring according to claim 4, characterized in that, The piston ring (5) is slidably connected to the annular gas storage chamber (1a), and a rotatably connected threaded ring post (51) is installed on the upper surface of the piston ring (5). The threaded ring post (51) is threadedly connected to the threaded through cavity (1b) opened in the ring body (1), and the top of the threaded ring post (51) extends out of the ring body (1) and is fixedly installed with a rotating ring (52).
6. The bearing housing seal ring according to claim 1, characterized in that, A dustproof lip (11) is provided on the outer ring wall at the bottom of the ring body (1).