Adjustable floating oil seal

Abstract

The utility model provides an adjustable floating oil seal which comprises a static ring installation seat and a fixed seat, the static ring installation seat is fixedly installed on one side of the fixed seat through a sealing mechanism, and a bolt is installed between the static ring installation seat and the fixed seat in a screwed mode through a screw hole. By rotating the bolt, the bolt drives the static ring mounting seat to approach the fixed seat, so that the static ring mounting seat drives the first sealing rubber ring to extrude the static ring, the movable ring and the second sealing rubber ring, the pressure between the static ring and the movable ring is adjusted, the sealing performance of the floating oil seal is prevented from being reduced, the service life of the floating oil seal can be prolonged, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of floating oil seals, in particular to an adjustable floating oil seal. Background Art

[0002] The floating oil seal has super strong sealing performance in harsh working environments such as coal powder, mud, water vapor, etc. It is a mechanical seal with the characteristics of easy maintenance, good sealing performance, long service life and simple structure.

[0003] The Chinese utility model patent with publication number CN216242280U discloses an adjustable floating oil seal, which adopts a 30° extended inclined cone surface with a curved concave design, which can expand the space of the cone surface and reserve sufficient adjustment position for the rubber ring, making it more convenient during work; however, the pressure between the static ring and the dynamic ring cannot be adjusted. With the increase of usage time and the wear between the static ring and the dynamic ring, the pressure between the static ring and the dynamic ring decreases, resulting in reduced sealing performance of the floating oil seal, shortening its service life, and prone to oil leakage.

[0004] To this end, the utility model provides an adjustable floating oil seal. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an adjustable floating oil seal to solve the problems raised in the above-mentioned background technology. The utility model rotates the bolt, and the bolt drives the stationary ring mounting seat to approach the fixed seat, so that the stationary ring mounting seat drives the first sealing rubber ring to squeeze the stationary ring, the dynamic ring and the second sealing rubber ring, thereby adjusting the pressure between the stationary ring and the dynamic ring, avoiding the reduction of the sealing performance of the floating oil seal, and can increase the service life of the floating oil seal, and the utility model is highly practical.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: an adjustable floating oil seal, including a stationary ring mounting seat and a fixed seat, the stationary ring mounting seat is fixedly mounted on one side of the fixed seat through a sealing mechanism, bolts are screwed and installed between the stationary ring mounting seat and the fixed seat through screw holes, a spring is arranged between the outer side of the bolt corresponding to the stationary ring mounting seat and the fixed seat, a chamber is opened on the opposite side of the stationary ring mounting seat and the fixed seat, and a first sealing rubber ring and a second sealing rubber ring are respectively installed inside the chamber through a stationary ring and a dynamic ring, and the first sealing rubber ring and the second sealing rubber ring both include a hollow ring and a solid ring.

[0007] Furthermore, the stationary ring and the dynamic ring are respectively arranged inside the stationary ring mounting seat and the fixed seat, and one end of the stationary ring and the dynamic ring is provided with a limiting groove.

[0008] Furthermore, the first sealing rubber ring and the second sealing rubber ring are installed between the limiting groove and the side wall of the chamber, and the first sealing rubber ring and the second sealing rubber ring have the same specifications.

[0009] Furthermore, the solid ring is arranged inside the hollow ring, and an elastic member is fixedly arranged in a circular shape between the outer wall of the solid ring and the inner wall of the hollow ring.

[0010] Furthermore, the sealing mechanism comprises a sealing groove, which is opened inside the fixing seat, and a sealing ring is arranged on the inner wall of the sealing groove.

[0011] Furthermore, one end of the stationary ring mounting seat is mounted inside the sealing groove and contacts the inner wall of the sealing ring, and the cross-sectional shape of the sealing ring is a right-angled trapezoid.

[0012] Furthermore, the sealing groove is annular in shape, a groove is provided on one side of the fixing seat at a position corresponding to the spring, and one end of the spring is installed inside the groove.

[0013] Furthermore, a shaft is installed at the inner center position of the stationary ring mounting seat and the fixed seat, the dynamic ring is fixedly installed on the shaft, and the shaft is arranged inside the stationary ring.

[0014] The beneficial effects of the utility model are as follows: the utility model provides an adjustable floating oil seal which can be installed on the shaft by rotating the bolt, and the bolt drives the stationary ring mounting seat to approach the fixed seat, and the stationary ring mounting seat and the fixed seat are sealed by the sealing groove and the sealing ring; the rotating bolt can squeeze the stationary ring mounting seat toward the fixed seat, thereby driving the first sealing rubber ring to squeeze the stationary ring, the dynamic ring and the second sealing rubber ring through the stationary ring mounting seat, thereby adjusting the pressure between the stationary ring and the dynamic ring, avoiding the reduction of the sealing performance of the floating oil seal, and improving the service life of the floating oil seal, and the utility model is highly practical; the elastic force of the first sealing rubber ring and the second sealing rubber ring can be increased by the solid ring, the elastic part and the hollow ring, avoiding the deformation of the first sealing rubber ring and the second sealing rubber ring due to long-term use, and preventing it from affecting the sealing performance of the floating oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the installation of an adjustable floating oil seal of the utility model;

[0016] Figure 2 The utility model is an adjustable floating oil seal Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 It is a cross-sectional structural diagram of a first sealing rubber ring and a second sealing rubber ring of an adjustable floating oil seal of the utility model;

[0018] Figure 4 This is a structural diagram of a dynamic ring and a static ring of an adjustable floating oil seal of the utility model;

[0019] In the figure: 1. static ring mounting seat; 2. fixed seat; 3. shaft rod; 4. static ring; 5. dynamic ring; 6. first sealing rubber ring; 7. second sealing rubber ring; 8. sealing groove; 9. sealing ring; 10. bolt; 11. spring; 12. solid ring; 13. hollow ring; 14. elastic member. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: an adjustable floating oil seal, comprising a stationary ring mounting seat 1 and a fixed seat 2, wherein the stationary ring mounting seat 1 is fixedly mounted on one side of the fixed seat 2 through a sealing mechanism, a bolt 10 is screwed and installed between the stationary ring mounting seat 1 and the fixed seat 2 through a screw hole, a spring 11 is arranged between the outer side of the bolt 10 corresponding to the stationary ring mounting seat 1 and the fixed seat 2, a chamber is opened on the opposite side of the stationary ring mounting seat 1 and the fixed seat 2, and a first sealing ring 4 and a moving ring 5 are respectively installed inside the chamber. The sealing rubber ring 6 and the second sealing rubber ring 7, the first sealing rubber ring 6 and the second sealing rubber ring 7 both include a hollow ring 13 and a solid ring 12, a shaft rod 3 is installed at the inner center position of the stationary ring mounting seat 1 and the fixed seat 2, the dynamic ring 5 is fixedly installed on the shaft rod 3, and the shaft rod 3 is arranged inside the stationary ring 4. The stationary ring mounting seat 1 can be adjusted by the arranged bolts 10 and springs 11, so as to facilitate the adjustment of the pressure between the stationary ring 4 and the dynamic ring 5, thereby avoiding the reduction of the sealing ability of the floating oil seal and thus improving its service life.

[0022] In this embodiment, the static ring 4 and the dynamic ring 5 are respectively arranged inside the static ring mounting seat 1 and the fixed seat 2, and one end of the static ring 4 and the dynamic ring 5 is provided with a limiting groove, and the first sealing rubber ring 6 and the second sealing rubber ring 7 are limitedly installed between the limiting groove and the side wall of the chamber, and the first sealing rubber ring 6 and the second sealing rubber ring 7 have the same specifications. The solid ring 12 is arranged inside the hollow ring 13, and an elastic member 14 is fixedly arranged in a circular shape between the outer wall of the solid ring 12 and the inner wall of the hollow ring 13. The elastic member 14, the solid ring 12 and the hollow ring 13 can increase the elastic force of the first sealing rubber ring 6 and the second sealing rubber ring 7 to prevent the first sealing rubber ring 6 and the second sealing rubber ring 7 from deformation, thereby ensuring the sealing performance of the floating oil seal.

[0023] In this embodiment, the sealing mechanism includes a sealing groove 8, which is opened inside the fixed seat 2. A sealing ring 9 is arranged on the inner wall of the sealing groove 8. One end of the stationary ring mounting seat 1 is installed inside the sealing groove 8 and contacts the inner wall of the sealing ring 9. The cross-sectional shape of the sealing ring 9 is a right-angled trapezoid. The shape of the sealing groove 8 is annular. A groove is opened on one side of the fixed seat 2 at the position corresponding to the spring 11. One end of the spring 11 is installed inside the groove. The stationary ring mounting seat 1 and the fixed seat 2 can be sealed by the action of the sealing ring 9 and the sealing groove 8, thereby improving the sealing performance of the floating oil seal. Moreover, by rotating the bolt 10, the distance between the stationary ring mounting seat 1 and the fixed seat 2 can be adjusted, thereby facilitating the subsequent adjustment of the pressure between the stationary ring 4 and the dynamic ring 5.

[0024] When using the adjustable floating oil seal, the fixing seat 2 is sleeved on the shaft rod 3 and fixedly installed on the fixing seat 2, the second sealing rubber ring 7 is installed on the dynamic ring 5 through the limiting groove, and the dynamic ring 5 is fixedly installed on the shaft rod 3, and is set in the chamber inside the fixing seat 2, the first sealing rubber ring 6 is installed on the static ring 4 through the limiting groove, and the static ring 4 is sleeved on the shaft rod 3, the static ring 4 is set on the outside of the dynamic ring 5, and the friction surfaces of the static ring 4 and the dynamic ring 5 are in contact with each other, the static ring mounting seat 1 is installed on the outside of the fixing seat 2 through the shaft rod 3, and the static ring mounting seat 1 and the fixing seat 2 are fixed by the bolt 10, by rotating the bolt 10, the bolt 10 drives the static ring mounting seat 1 to approach the fixing seat 2, so that the floating oil seal can be installed on the shaft rod 3, one end of the static ring mounting seat 1 is installed in the sealing groove 8 and squeezes the sealing ring 9, and the static ring mounting seat 1 and the fixing seat 2 are fixed by the sealing groove 8 and the sealing ring 9. The stationary ring mounting seat 1 squeezes the first sealing rubber ring 6, the stationary ring 4, the dynamic ring 5 and the second sealing rubber ring 7, so that there is pressure between the stationary ring 4 and the dynamic ring 5; as the stationary ring 4 and the dynamic ring 5 wear, the stationary ring 4 and the dynamic ring 5 maintain contact under the elastic force of the first sealing rubber ring 6 and the second sealing rubber ring 7, and the rotating bolt 10 can continue to squeeze the stationary ring mounting seat 1 toward the fixed seat 2, thereby driving the first sealing rubber ring 6 to squeeze the stationary ring 4, the dynamic ring 5 and the second sealing rubber ring 7 through the stationary ring mounting seat 1, thereby adjusting the pressure between the stationary ring 4 and the dynamic ring 5, avoiding the reduction of the sealing performance of the floating oil seal, and improving the service life of the floating oil seal, which is highly practical; the solid ring 12, the elastic member 14 and the hollow ring 13 can increase the elastic force of the first sealing rubber ring 6 and the second sealing rubber ring 7, avoiding the deformation of the first sealing rubber ring 6 and the second sealing rubber ring 7 due to long-term use, and preventing it from affecting the sealing performance of the floating oil seal.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An adjustable floating oil seal, comprising a stationary ring mounting seat (1) and a fixed seat (2), characterized in that: The stationary ring mounting seat (1) is fixedly mounted on one side of the fixed seat (2) through a sealing mechanism, a bolt (10) is screwedly mounted between the stationary ring mounting seat (1) and the fixed seat (2) through a screw hole, a spring (11) is arranged between the outer side of the bolt (10) and the stationary ring mounting seat (1) and the fixed seat (2), a chamber is opened on the opposite side of the stationary ring mounting seat (1) and the fixed seat (2), a first sealing rubber ring (6) and a second sealing rubber ring (7) are respectively installed inside the chamber through a stationary ring (4) and a dynamic ring (5), and the first sealing rubber ring (6) and the second sealing rubber ring (7) both include a hollow ring (13) and a solid ring (12).

2. An adjustable floating oil seal according to claim 1, characterized in that: The stationary ring (4) and the dynamic ring (5) are respectively arranged inside the stationary ring mounting seat (1) and the fixed seat (2), and one end of the stationary ring (4) and the dynamic ring (5) is provided with a limiting groove.

3. An adjustable floating oil seal according to claim 2, characterized in that: The first sealing rubber ring (6) and the second sealing rubber ring (7) are installed between the limiting groove and the side wall of the chamber, and the first sealing rubber ring (6) and the second sealing rubber ring (7) have the same specifications.

4. An adjustable floating oil seal according to claim 3, characterized in that: The solid ring (12) is arranged inside the hollow ring (13), and an elastic member (14) is fixedly arranged in a circular shape between the outer wall of the solid ring (12) and the inner wall of the hollow ring (13).

5. The adjustable floating oil seal according to claim 1, characterized in that: The sealing mechanism comprises a sealing groove (8), the sealing groove (8) is opened inside the fixing seat (2), and a sealing ring (9) is arranged on the inner wall of the sealing groove (8).

6. An adjustable floating oil seal according to claim 5, characterized in that: One end of the stationary ring mounting seat (1) is mounted inside the sealing groove (8) and contacts the inner wall of the sealing ring (9); the cross-sectional shape of the sealing ring (9) is a right-angled trapezoid.

7. An adjustable floating oil seal according to claim 6, characterized in that: The sealing groove (8) is annular in shape, and a groove is provided on one side of the fixing seat (2) at a position corresponding to the spring (11), and one end of the spring (11) is installed inside the groove.

8. The adjustable floating oil seal according to claim 1, characterized in that: A shaft (3) is installed at the inner center position of the stationary ring mounting seat (1) and the fixed seat (2), the dynamic ring (5) is fixedly installed on the shaft (3), and the shaft (3) is arranged inside the stationary ring (4).

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