CN211314873U

CN211314873U - Mechanical seal end cover for bearing seat

Info

Publication number: CN211314873U
Application number: CN201921946173.7U
Authority: CN
Inventors: 王培代
Original assignee: Qitaihe Xinsheng Machinery Manufacturing Co Ltd
Current assignee: Qitaihe Xinsheng Machinery Manufacturing Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-08-21
Anticipated expiration: 2029-11-12

Abstract

The utility model belongs to the technical field of the mechanical seal technique and specifically relates to a mechanical seal end cover for bearing frame, which comprises a rotating shaft, pivot outside cover is equipped with the bearing, bearing outside cover is equipped with the bearing frame, bearing one side is provided with the bearing spacer, bearing spacer keeps away from bearing one side and is provided with the spring holder, the spring holder is kept away from bearing spacer one side and is installed the spring, the spring is kept away from spring holder one side and is provided with the rotating ring, first sealed recess has been seted up with the pivot binding face to the rotating ring, be provided with first sealing washer in the first sealed recess, the rotating ring is kept away from spring side-mounting and is provided with the sliding sleeve, the sliding sleeve is kept away from rotating ring one side and is provided with quiet ring, the second sealing washer is installed in the quiet ring outside, bearing shaft keeps away from. The utility model discloses have stable leakproofness, improve the life of sealing member.

Description

Mechanical seal end cover for bearing seat

Technical Field

The utility model relates to a mechanical seal technical field especially relates to a mechanical seal end cover for bearing frame.

Background

The bearing frame is that a lot of mechanical equipment are used for fixedly commonly used, support and supply the rotatory part of pivot, mechanical equipment is in order to solve the moist problem of sending out of bearing, generally all install the bearing frame end cover on the bearing frame, play the effect of location, it is dustproof and protection, but current bearing frame end cover is when using, because the sealed effect of end cover is relatively poor, especially on some high-pressure pump bodies, pivot and sealing member rotate relatively, make the sealing member produce friction loss, easily lead to the lubricating oil in the bearing frame to leak, reduce the life of sealing member simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the mechanical seal end cover for bearing frame who provides makes its leakproofness more stable, has improved the life of sealing member.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the mechanical sealing end cover for the bearing seat is designed and comprises a rotating shaft, wherein a bearing is sleeved on the outer side of the rotating shaft, and a bearing seat is sleeved on the outer side of the bearing; a bearing blocking sleeve is arranged on one side of the bearing, and a spring seat is arranged on one side, away from the bearing, of the bearing blocking sleeve; a spring is arranged on one side of the spring seat, which is far away from the bearing retaining sleeve, and a movable ring is arranged on one side of the spring, which is far away from the spring seat; a first sealing groove is formed in the binding surface of the movable ring and the rotating shaft, and a first sealing ring is arranged in the first sealing groove; a sliding sleeve is arranged on one side of the movable ring, which is far away from the spring, and a static ring is arranged on one side of the sliding sleeve, which is far away from the movable ring; a second sealing ring is arranged on the outer side of the static ring; a second sealing groove with a conical section is formed in one end, far away from the bearing, of the bearing shaft, and a third sealing ring is installed in the second sealing groove; a fixed end cover is sleeved on the outer side of the static ring and is fixedly connected with the bearing seat through a screw; an adjusting end cover is arranged on one side, away from the bearing seat, of the fixed end cover, and one end of the adjusting end cover penetrates through the fixed end cover to be attached to the static ring; and one side of the adjusting end cover, which is far away from the fixed end cover, is uniformly provided with adjusting bolts, and one ends of the adjusting bolts penetrate through the adjusting end cover and then are in threaded connection with the fixed end cover.

Preferably, the cross section of the first sealing groove is wedge-shaped; and a first oil inlet channel communicated with the first sealing groove is respectively formed in the outer side of the movable ring.

Preferably, the bearing seat is provided with a groove communicated with the second sealing groove, and the inner wall of the bearing seat is symmetrically provided with a second oil inlet channel communicated with the groove.

Preferably, one side of the third sealing ring, which is close to the groove, is provided with an arc-shaped groove.

Preferably, an elastic rubber pad is arranged between the fixed end cover and the adjusting end cover.

The utility model provides a pair of mechanical seal end cover for bearing frame, beneficial effect lies in: the utility model discloses in seted up first sealed recess through at rotating ring and pivot binding face, be provided with first sealing washer in the first sealed recess, make rotating ring and pivot relatively static, the loss of first sealing washer has been avoided, the life of first sealing washer has been improved, install the spring through keeping away from bearing spacer one side at the spring holder, the spring is kept away from spring holder one side and is provided with the rotating ring, the rotating ring is kept away from spring side-mounting and is provided with the sliding sleeve, the sliding sleeve is kept away from rotating ring one side and is provided with the quiet ring, make the mechanical seal between sliding sleeve and quiet ring better, keep away from bearing one end through installing second sealing washer and bearing shaft in the quiet ring outside and seted up the cross-section and be conical second sealed recess, install the third sealing washer in the second sealed recess, make second sealing washer and third sealing washer all be in fixed state, thereby the life of extension sealing.

Drawings

Fig. 1 is a schematic view of a front cross-sectional structure of a mechanical seal end cap for a bearing seat according to the present invention;

fig. 2 is an enlarged schematic structural view of a portion a of a mechanical seal end cap for a bearing seat according to the present invention;

fig. 3 is an enlarged schematic structural diagram of a portion B of a mechanical seal end cover for a bearing seat according to the present invention.

In the figure: the bearing seat comprises a bearing seat 1, a rotating shaft 2, a bearing 3, a bearing retaining sleeve 4, a spring seat 5, a spring 6, a moving ring 7, a first sealing groove 8, a first sealing ring 9, a sliding sleeve 10, a static ring 11, a second sealing ring 12, a second sealing groove 13, a third sealing ring 14, a fixed end cover 15, an adjusting end cover 16, an adjusting bolt 17, a first oil inlet channel 18, a groove 19, a second oil inlet channel 20 and an elastic rubber pad 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a mechanical seal end cover for bearing seat, including

pivot

2, 2 outside covers of pivot are equipped with bearing 3, 3 outside covers of bearing are equipped with bearing frame 1, bearing 3 one side is provided with bearing 3 spacer 4, bearing 3 spacer 4 is provided with spring holder 5 far away from bearing 3 one side, spring holder 5 is kept away from bearing 3 spacer 4 one side and is installed spring 6, spring 6 is kept away from spring holder 5 one side and is provided with rotating ring 7, first sealed recess 8 has been seted up with 2 binding face of pivot to rotating ring 7, be provided with first sealing washer 9 in the first sealed recess 8, the cross-section of first sealed recess 8 is the wedge form, first oil feed passageway 18 that is linked together with first sealed recess 8 is seted up respectively in the outside of rotating ring 7, seal up the junction of rotating ring 7 and pivot 2 through first sealing washer 9.

The movable ring 7 is provided with a sliding sleeve 10 far away from one side of the spring 6, the sliding sleeve 10 is provided with a static ring 11 far away from one side of the movable ring 7, a second sealing ring 12 is installed on the outer side of the static ring 11, and the joint of the static ring 11 and the fixed end cover 15 is sealed through the second sealing ring 12.

Bearing 3 axle is kept away from bearing 3 one end and is offered the sealed recess 13 of second that the cross-section is the toper, bearing frame 1 offers the slot 19 that is linked together with the sealed recess 13 of second, the second oil feed passageway 20 with slot 19 intercommunication is offered to the inner wall symmetry of bearing frame 1, install third sealing washer 14 in the sealed recess 13 of second, third sealing washer 14 is close to slot 19 one side and sets up and is the arc recess form, quiet ring 11 outside cover is equipped with fixed end cover 15, fixed end cover 15 is connected fixedly through screw and bearing frame 1, seal bearing frame 1 and fixed end cover 15 junction through third sealing washer 14.

The fixed end cover 15 is provided with the regulation end cover 16 far away from bearing frame 1 one side, adjust 16 one ends of the end cover and pass the fixed end cover 15 and laminate with quiet ring 11, it evenly is provided with adjusting bolt 17 to adjust the end cover 16 and keep away from fixed end cover 15 one side, adjusting bolt 17 one end runs through behind the regulation end cover 16 with fixed end cover 15 threaded connection, be provided with elastic rubber pad 21 between fixed end cover 15 and the regulation end cover 16, adjust the precision of laminating between sliding sleeve 10 and quiet ring 11 through adjusting 16 end covers, thereby make the mechanical seal degree between sliding sleeve 10 and quiet ring 11 adjust.

The working principle is as follows: when the sealing device works, the bearing 3 and the spring seat 5 are isolated by the retaining sleeve 4 of the bearing 3, the bearing 3 and the spring seat 5 are prevented from generating relative friction to damage the bearing 3, the movable ring 7 is moved towards the direction far away from the bearing 3 by the elasticity of the spring 6, so that the sliding block is driven to be tightly attached to the fixed block, meanwhile, the sealing treatment is carried out between the movable ring 7 and the rotating shaft 2 by the first sealing ring 9 arranged on the movable ring 7, meanwhile, the first sealing ring 9 is pushed towards the rotating shaft 2 by high-pressure oil by the first oil inlet channel 18, the axial sealing of the movable ring 7 is tighter, further, the sealing performance of the movable ring 7 and the rotating shaft 2 is enhanced, the gap at the joint of the fixed ring 11 and the fixed end cover 15 is sealed by the second sealing ring 12, the third sealing ring 14 is pushed towards the fixed end cover 15 by the high-pressure oil through the second oil inlet channel 20, and the joint of the bearing seat 1 and the fixed, the adjusting end cap 16 is adjusted by the adjusting bolt 17, so that the elastic rubber pad 21 is pressed and fixed.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

When the mould is in work, the upper mould and the lower mould are closed, the lower surface of the male mould 10 is attached to the upper surface of the stripper plate 12, the spring 11 is in an extrusion state, the heating pipe 33 is used for preheating the mould cavity, the material is injected into the mould cavity through the feeding pipe 17, the exhaust pipe 18 is used for exhausting gas in the mould cavity, the heating pipe 33 stops heating after the material is injected, the upper mould and the lower mould are slowly separated after the mould is cooled and moulded, and the stripper plate 12 is pushed to move upwards by the elasticity of the spring 11 for stripping. Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. A mechanical sealing end cover for a bearing seat comprises a rotating shaft (2) and is characterized in that a bearing (3) is sleeved on the outer side of the rotating shaft (2), and a bearing seat (1) is sleeved on the outer side of the bearing (3); a bearing (3) retaining sleeve (4) is arranged on one side of the bearing (3), and a spring seat (5) is arranged on one side, far away from the bearing (3), of the bearing (3) retaining sleeve (4); a spring (6) is arranged on one side, away from the bearing (3), of the spring seat (5) and away from the blocking sleeve (4), and a movable ring (7) is arranged on one side, away from the spring seat (5), of the spring (6); a first sealing groove (8) is formed in the binding surface of the movable ring (7) and the rotating shaft (2), and a first sealing ring (9) is arranged in the first sealing groove (8); a sliding sleeve (10) is arranged on one side of the movable ring (7) far away from the spring (6), and a static ring (11) is arranged on one side of the sliding sleeve (10) far away from the movable ring (7); a second sealing ring (12) is arranged on the outer side of the static ring (11); a second sealing groove (13) with a conical section is formed in one end, far away from the bearing (3), of the shaft of the bearing (3), and a third sealing ring (14) is installed in the second sealing groove (13); a fixed end cover (15) is sleeved on the outer side of the static ring (11), and the fixed end cover (15) is fixedly connected with the bearing seat (1) through a screw; an adjusting end cover (16) is arranged on one side, far away from the bearing seat (1), of the fixed end cover (15), and one end of the adjusting end cover (16) penetrates through the fixed end cover (15) to be attached to the static ring (11); adjusting bolts (17) are uniformly arranged on one side, far away from the fixed end cover (15), of the adjusting end cover (16), and one end of each adjusting bolt (17) penetrates through the adjusting end cover (16) and then is in threaded connection with the fixed end cover (15).

2. A mechanical seal end cap for a bearing housing according to claim 1, characterized in that the cross-section of the first seal groove (8) is wedge-shaped; and the outer side of the movable ring (7) is respectively provided with a first oil inlet channel (18) communicated with the first sealing groove (8).

3. The mechanical seal end cover for the bearing seat is characterized in that the bearing seat (1) is provided with a groove (19) communicated with the second seal groove (13), and the inner wall of the bearing seat (1) is symmetrically provided with second oil inlet channels (20) communicated with the groove (19).

4. A mechanical seal end cap for a bearing housing according to claim 3, characterized in that the third seal ring (14) is provided with an arc-shaped groove on the side close to the groove (19).

5. A mechanical seal end cap for a bearing housing according to claim 1, characterized in that an elastic rubber pad (21) is arranged between the fixed end cap (15) and the adjusting end cap (16).