Floating oil seal for end face mechanical sealing
By incorporating anti-pressure components and ceramic anti-wear rings into the floating oil seal, the movement distance of the floating seal seat and floating seal ring is limited, thus solving the problem of the sealing ring deforming under pressure due to excessive movement distance. This improves the service life and wear resistance of the sealing ring and enhances heat dissipation.
Patent Information
- Application Number
- CN202520288527.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In existing floating oil seals, excessive movement distance between the floating seal seat and the floating seal ring causes the sealing ring to deform under pressure, affecting its service life.
Anti-pressure components, including circular grooves, rubber pads, circular plates, connecting rods, and rectangular plates, are installed between the floating seal seat and the floating seal ring. These components limit the movement distance and slow down the movement speed through the rubber pads. Combined with ceramic anti-wear rings and limiting components, friction is reduced, thereby improving the wear resistance and service life of the sealing ring.
It effectively limits the movement distance between the floating seal seat and the floating seal ring, reduces the force on the sealing ring, extends the service life of the sealing ring, and improves the heat dissipation effect through the heat dissipation groove.
Smart Images
Figure CN223690317U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of floating oil seal, especially to a floating oil seal for end face mechanical seal. BACKGROUND
[0002] Floating oil seal is a common name of floating seal, belongs to one kind of mechanical seal in dynamic seal, and a sealing ring is arranged between the floating seal seat and the floating seal ring in the floating oil seal to improve the sealing effect.
[0003] The sealing ring arranged between the floating seal seat and the floating seal ring in the prior art will be subjected to force when the floating seal seat and the floating seal ring move in the use process, and if the moving distance is too large, the sealing ring will be subjected to large force, which will easily cause the sealing ring to be deformed under pressure, thereby affecting the service life of the sealing ring. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies in the prior art, the utility model aims to provide a floating oil seal for end face mechanical seal, which can limit the moving distance between the floating seal seat and the floating seal ring, thereby improving the service life of the sealing ring.
[0005] The above technical purpose of the utility model is achieved by the following technical scheme:
[0006] A floating oil seal for end face mechanical seal, comprising a floating seal seat and a floating seal ring arranged in the floating seal seat, a second sealing ring is arranged between the floating seal seat and the floating seal ring, and a plurality of pressure prevention pieces are arranged between the floating seal seat and the floating seal ring.
[0007] The pressure prevention piece comprises a circular sliding groove opened in the floating seal ring, the inner bottom wall of the circular sliding groove is fixedly connected with a rubber cushion, a rectangular groove is opened in the floating seal seat, a circular plate is slidably arranged on the circumferential inner wall of the circular sliding groove, the upper end of the circular plate is rotatably connected with a connecting rod, the connecting rod movably penetrates the upper end of the floating seal ring, a rectangular plate is slidably connected between the side walls of the rectangular groove, the connecting rod movably penetrates the inner bottom wall of the rectangular groove, and the connecting rod is connected with the rectangular plate through a connecting piece.
[0008] In a preferred example, the connecting piece can be further configured as an inner threaded ring fixedly connected to the lower end of the rectangular plate, and the connecting rod is threadedly connected in the inner threaded ring.
[0009] In a preferred example, the utility model can be further configured as that a sealing groove is opened in the circumferential side of the floating seal ring, a first sealing ring is arranged in the sealing groove, and a wear-resistant piece is arranged on the circumferential inner wall of the floating seal seat to improve the wear resistance of the second sealing ring and the first sealing ring.
[0010] The utility model discloses in a preferable example can be further configured as: the wear -resisting piece includes two ceramic anti -wear ring, the ceramic anti -wear ring fixedly connected in the circumferential inner wall of floating seal seat.
[0011] The utility model discloses in a preferable example can be further configured as: the circumferential inner wall of floating seal ring is equipped with two first radiating grooves, and one side wall of two first radiating grooves is equipped with second radiating groove, and the side wall between second radiating groove is fixedly connected with the radiating plate, and the inner top wall and inner bottom wall of first radiating groove are fixedly connected with the radiating ring, and the radiating ring is fixed with radiating plate.
[0012] The utility model discloses in a preferable example can be further configured as: the floating seal seat and floating seal ring between set up the stop piece, the stop piece includes two first ceramic limit ring fixedly connected in the circumferential side of floating seal ring, and the circumferential inner wall of floating seal seat is fixedly connected with second ceramic limit ring.
[0013] Summarized above, the utility model discloses at least one beneficial technical effect that includes following:
[0014] 1. be provided with floating seal seat, floating seal ring, circular chute, rubber cushion, circular board, connecting rod, rectangular groove and rectangular board, through connecting rod, circular board and rectangular board, can limit the moving distance between floating seal seat and floating seal ring, thereby reducing the effect to second sealing ring, and rubber cushion slows down the falling speed of connecting rod, improves the service life of second sealing ring.
[0015] 2. be provided with ceramic anti -wear ring, first sealing ring and second sealing ring, when moving between floating seal seat and floating seal ring, and floating seal ring and floating seal seat extrude first sealing ring and second sealing ring, and ceramic anti -wear ring can reduce the friction between first sealing ring and floating seal seat, thereby improving the wear -resisting effect of second sealing ring and first sealing ring. ACCURACY OF DRAWINGS
[0016] Figure 1 It is the perspective view of the embodiment;
[0017] Figure 2 It is the perspective view of the embodiment;
[0018] Figure 3 It is the enlarged view of A in the embodiment Figure 2
[0019] Figure 4 It is the enlarged view of B in the embodiment Figure 2
[0020] In the figure, 1, floating seal seat; 2, floating seal ring; 3, first heat dissipation groove; 4, second heat dissipation groove; 5, heat dissipation ring; 6, heat dissipation plate; 7, first sealing ring; 8, second sealing ring; 9, sealing groove; 10, ceramic wear-resistant ring; 11, first ceramic limiting ring; 12, circular sliding groove; 13, rubber cushion; 14, circular plate; 15, connecting rod; 16, rectangular groove; 17, rectangular plate; 18, internally threaded ring; 19, second ceramic limiting ring. DETAILED DESCRIPTION
[0021] The utility model will be further explained in detail below in combination with the drawings.
[0022] Embodiment:
[0023] Reference Figures 1-4 The utility model discloses a floating oil seal for end face mechanical seal, including floating seal seat 1 and setting in its floating seal ring 2, be provided with second sealing ring 8 between floating seal seat 1 and floating seal ring 2, be provided with a plurality of pressure-proof parts between floating seal seat 1 and floating seal ring 2;
[0024] The pressure-proof part includes the circular sliding groove 12 of being opened in the floating seal ring 2, and the inner bottom wall of circular sliding groove 12 is fixedly connected with rubber cushion 13, the rectangular groove 16 is opened in floating seal seat 1, and the circumferential inner wall of circular sliding groove 12 is slidably provided with circular plate 14, and the upper end of circular plate 14 is rotatably connected with connecting rod 15, connecting rod 15 movably penetrates the upper end of floating seal ring 2, and the sidewall between rectangular groove 16 is slidably connected with rectangular plate 17, and connecting rod 15 movably penetrates the inner bottom wall of rectangular groove 16, and connecting rod 15 is connected with rectangular plate 17 by connecting piece.
[0025] In the embodiment, reference Figure 2 When the floating oil seal is used, the floating seal ring 2 will extrude the second sealing ring 8, the floating seal ring 2 and the floating seal seat 1 are close to each other, the rectangular plate 17 and the circular plate 14 slide in the rectangular groove 16 and the circular sliding groove 12 respectively, the circular plate 14 contacts the rubber cushion 13, which can slow down the downward movement speed of the circular plate 14, the connecting rod 15, the circular plate 14 and the rectangular plate 17 can limit the movement distance between the floating seal seat 1 and the floating seal ring 2, thereby reducing the effect on the second sealing ring 8, the rubber cushion 13 slows down the downward speed of the connecting rod 15, and the service life of the second sealing ring 8 is improved.
[0026] Further, please refer to Figure 3 The connecting piece includes an internally threaded ring 18 fixedly connected to the lower end of the rectangular plate 17, and the connecting rod 15 is threadedly connected to the internally threaded ring 18.
[0027] In the embodiment, although not shown in the figure, a threaded groove is formed in the circumferential side upper portion of the connecting rod 15, and reference Figure 3The circumferential side upper portion of the connecting rod 15 is threadedly connected with the circumferential inner wall of the inner threaded ring 18, and detachable connection between the connecting rod 15 and the inner threaded ring 18 can be realized.
[0028] Further, please refer to Figure 3 and 4 , the circumferential side of the floating seal ring 2 is provided with a sealing groove 9, and the first sealing ring 7 is arranged in the sealing groove 9. The circumferential inner wall of the floating seal seat 1 is provided with a wear-resistant part for improving the wear resistance of the second sealing ring 8 and the first sealing ring 7.
[0029] In this embodiment, please refer to Figure 4 , the first sealing ring 7 and the second sealing ring 8 are arranged, which can improve the sealing effect, thereby can share the pressure of the second sealing ring 8 and improve the service life of the second sealing ring 8.
[0030] Further, please refer to Figure 4 , the wear-resistant part includes two ceramic wear-resistant rings 10, which are fixedly connected to the circumferential inner wall of the floating seal seat 1.
[0031] In this embodiment, please refer to Figure 4 , only the ceramic wear-resistant ring 10 of the inner wall of the floating seal seat 1 is drawn in the figure, and preferably, the ceramic wear-resistant ring 10 can also be arranged on the circumferential side of the floating seal ring 2, which can reduce the friction force at the position where the first sealing ring 7 and the second sealing ring 8 contact the floating seal seat 1 and the floating seal ring 2, thereby improving the service life of the second sealing ring 8 and the first sealing ring 7.
[0032] Further, please refer to Figure 4 , the circumferential inner wall of the floating seal ring 2 is provided with two first heat dissipation grooves 3, one side wall of the two first heat dissipation grooves 3 is provided with a second heat dissipation groove 4, the side walls of the second heat dissipation groove 4 are fixedly connected with a heat dissipation plate 6, and the inner top wall and the inner bottom wall of the first heat dissipation groove 3 are fixedly connected with a heat dissipation ring 5, and the heat dissipation ring 5 is fixed with the heat dissipation plate 6.
[0033] In this embodiment, please refer to Figure 4 , the heat dissipation ring 5 and the heat dissipation plate 6 can quickly dissipate the temperature on the floating seal ring 2, thereby improving the heat dissipation effect of the floating seal ring 2.
[0034] Further, please refer to Figure 4 , a limiting part is arranged between the floating seal seat 1 and the floating seal ring 2, and the limiting part includes two first ceramic limiting rings 11 fixedly connected to the circumferential side of the floating seal ring 2, and the circumferential inner wall of the floating seal seat 1 is fixedly connected with a second ceramic limiting ring 19.
[0035] In this embodiment, please refer to , the first sealing ring 7 and the second sealing ring 8 can be separated and limited by the positions of the first ceramic limiting ring 11 and the second ceramic limiting ring 19 in the first ceramic limiting ring 11.
[0036] The first ceramic limiting ring 11 and the second ceramic limiting ring 19 are preferably made of ceramic, which reduces friction and prolongs service life.
[0037] The principle of the above embodiment is that when the floating oil seal is used, the floating seal ring 2 extrudes the second sealing ring 8, the floating seal ring 2 and the floating seal seat 1 are close to each other, the rectangular plate 17 and the circular plate 14 slide in the rectangular groove 16 and the circular sliding groove 12 respectively, the circular plate 14 contacts the rubber cushion 13, which can slow down the downward movement speed of the circular plate 14, and through the connecting rod 15, the circular plate 14 and the rectangular plate 17, the movement distance between the floating seal seat 1 and the floating seal ring 2 can be limited, so as to reduce the effect on the second sealing ring 8, the rubber cushion 13 slows down the downward speed of the connecting rod 15, and the service life of the second sealing ring 8 is prolonged.
[0038] The contents not described in detail in the specification belong to the prior art known by those skilled in the art.
[0039] The embodiments of the specific embodiment are the preferred embodiments of the utility model, and are not limited to the protection scope of the utility model, so that: any equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.
Claims
1. A floating oil seal for end face mechanical seals, comprising a floating seal carrier (1) and a floating seal ring (2) arranged therein, characterized in that: The second sealing ring (8) is arranged between the floating seal seat (1) and the floating seal ring (2), and a plurality of pressure preventing members are arranged between the floating seal seat (1) and the floating seal ring (2). The circular sliding groove (12) is arranged in the floating seal ring (2), the inner bottom wall of the circular sliding groove (12) is fixedly connected with the rubber soft pad (13), the rectangular groove (16) is arranged in the floating seal seat (1), the circumferential inner wall of the circular sliding groove (12) is slidably provided with the circular plate (14), the upper end of the circular plate (14) is rotatably connected with the connecting rod (15), the connecting rod (15) movably penetrates the upper end of the floating seal ring (2), the side wall of the rectangular groove (16) is slidably connected with the rectangular plate (17), the connecting rod (15) movably penetrates the inner bottom wall of the rectangular groove (16), and the connecting rod (15) is connected with the rectangular plate (17) through the connecting piece.
2. A floating oil seal for end face mechanical seals according to claim 1, characterized in that: The connecting piece comprises an inner threaded ring (18) fixedly connected to the lower end of the rectangular plate (17), and the connecting rod (15) is threadedly connected in the inner threaded ring (18).
3. A floating oil seal for end face mechanical seals according to claim 1, characterized in that: The circumferential side of the floating seal ring (2) is provided with a sealing groove (9), the sealing groove (9) is provided with a first sealing ring (7), and the circumferential inner wall of the floating seal seat (1) is provided with a wear-resistant member for improving the wear resistance of the second sealing ring (8) and the first sealing ring (7).
4. A floating oil seal for end face mechanical seals according to claim 3, characterized in that: The wear-resistant member comprises two ceramic wear-resistant rings (10), and the ceramic wear-resistant rings (10) are fixedly connected to the circumferential inner wall of the floating seal seat (1).
5. A floating oil seal for end face mechanical seals according to claim 1, characterized in that: The circumferential inner wall of the floating seal ring (2) is provided with two first heat dissipation grooves (3), one side wall of the two first heat dissipation grooves (3) is provided with a second heat dissipation groove (4), the side wall of the second heat dissipation groove (4) is fixedly connected with a heat dissipation plate (6), the inner top wall and the inner bottom wall of the first heat dissipation groove (3) are fixedly connected with a heat dissipation ring (5), and the heat dissipation ring (5) is fixed with the heat dissipation plate (6).
6. A floating oil seal for end face mechanical seals according to claim 1, characterized in that: The floating seal seat (1) and the floating seal ring (2) are provided with a limiting member, the limiting member comprises two first ceramic limiting rings (11) fixedly connected to the circumferential side of the floating seal ring (2), and the circumferential inner wall of the floating seal seat (1) is fixedly connected with a second ceramic limiting ring (19).