CN219082250U

CN219082250U - Integrated single-end-face mechanical seal with end face lubrication

Info

Publication number: CN219082250U
Application number: CN202222678196.2U
Authority: CN
Inventors: 廖文龙; 王勇; 蒋鑫
Original assignee: Chongqing Yir Fluid Equipment Manufacturing Co ltd
Current assignee: Chongqing Yir Fluid Equipment Manufacturing Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-05-26
Anticipated expiration: 2032-10-12

Abstract

The utility model discloses an integrated single-end-face mechanical seal with end face lubrication, which comprises a rotating shaft, a movable ring assembly and a static ring assembly, wherein the movable ring assembly and the static ring assembly are sleeved on the rotating shaft, pressing plates are symmetrically arranged on the static ring assembly, the pressing plates are arranged in an L shape, a limiting block is fixedly connected to the horizontal side end of each pressing plate, and the movable ring assembly is arranged between the upper side end of each pressing plate and the limiting block. The utility model belongs to the technical field of mechanical sealing, and particularly provides an integrated single-end-face mechanical seal with end face lubrication, which has the advantages of high practicability, simple use, effective adoption of an integrated mechanical sealing structure, convenience in installation and disassembly, capability of realizing autonomous lubrication, forming a liquid pressing film, reducing friction between dynamic and static rings and prolonging service life.

Description

Integrated single-end-face mechanical seal with end face lubrication

Technical Field

The utility model belongs to the technical field of mechanical sealing, and particularly relates to an integrated single-end-face mechanical seal with end face lubrication.

Background

The mechanical seal means a device for preventing fluid leakage, which is formed by at least one pair of end surfaces perpendicular to the rotation axis, which are kept in contact and relatively slide under the action of fluid pressure and the elasticity (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal.

The existing mechanical seal has the defects that the cost is higher, the maintenance is more complex, the dynamic pressure liquid film is not formed between the dynamic ring and the static ring on the sealing end surface at the starting stage, so that dry friction is generated between the dynamic ring and the static ring, the service life of the mechanical seal is further reduced, the existing mechanical seal generally adopts a dynamic ring and static ring component separation structure, the dynamic ring and the static ring component separation structure are assembled to the sealing point position in sequence during installation, the installation process is complex, and the flatness of the sealing surface after installation is difficult to ensure.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the integrated single-end-face mechanical seal with end face lubrication, which has the advantages of high practicability, simple use, effective adoption of an integrated mechanical seal structure, convenience in installation and disassembly, capability of realizing independent lubrication, forming a liquid pressing film, reducing friction between dynamic and static rings and prolonging the service life.

The technical scheme adopted by the utility model is as follows: the utility model discloses an integrated single-end-face mechanical seal with end face lubrication, which comprises a rotating shaft, a movable ring assembly and a stationary ring assembly, wherein the movable ring assembly and the stationary ring assembly are sleeved on the rotating shaft, pressing plates are symmetrically arranged on the stationary ring assembly, the pressing plates are arranged in an L shape, a limiting block is fixedly connected to the horizontal side end of each pressing plate, and the movable ring assembly is arranged between the upper side end of each pressing plate and the limiting block.

Preferably, the movable ring assembly comprises a movable ring seat, a movable ring, springs and spring seats, wherein the movable ring seat is sleeved on the rotating shaft, the movable ring is sleeved on the movable ring seat, the spring seats are arranged between the movable ring and the opposite side walls of the movable ring seat, and the springs are uniformly and symmetrically arranged between the spring seats and the side walls of the movable ring seat.

As a further preferable mode, sliding grooves are formed in the side walls, far away from the side walls, of the movable ring and the movable ring seat.

Furthermore, the side ends of the pressing plate and the limiting block are respectively provided with a ball corresponding to one side of the side wall of the movable ring seat and one side of the side wall of the movable ring, the balls are rotatably embedded in the side ends of the pressing plate and the limiting block, and the balls are slidably arranged in the sliding groove.

Preferably, the stationary ring assembly comprises a stationary ring seat, a stationary ring and a liquid phase inlet, wherein the stationary ring seat is sleeved on one side opposite to the movable ring seat on the rotating shaft, the stationary ring is arranged on the stationary ring seat, and the liquid phase inlet is uniformly arranged on the stationary ring seat.

As a further preferable mode, the static ring is uniformly provided with holes and grooves, and the inlets of the holes and grooves correspond to the inlets and outlets of the liquid phase.

Preferably, the horizontal end of the pressing plate is penetrated with a pin rod, and the other end of the pin rod is connected with the stationary ring seat in a threaded manner.

The beneficial effects obtained by the utility model by adopting the structure are as follows: the integrated single-end face mechanical seal with the end face lubrication comprises a movable ring seat and a movable ring, wherein the movable ring seat and the movable ring are assembled through a pressing plate, the pressing plate is arranged on a static ring seat through a pin rod, integrated installation is realized, and disassembly and overhaul are facilitated.

2. The hydrodynamic liquid film is formed between the counter-moving ring and the static ring conveniently through the liquid phase inlet, friction between the moving ring and the static ring is reduced, and the service life of the counter-moving ring is prolonged.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an integrated single-ended mechanical seal with end lubrication according to the present utility model;

FIG. 2 is a schematic illustration of an integrated single-ended mechanical seal with end lubrication in accordance with the present utility model;

fig. 3 is an enlarged partial schematic view of the portion a in fig. 2.

Wherein, 1, a rotating shaft, 2, a moving ring component, 3, a static ring component, 4, a pressing plate, 5, a limiting block, 6, a moving ring seat, 7, a moving ring, 8 and a spring, 9, spring seats, 10, a static ring seat, 11, a static ring, 12, a liquid phase inlet, 13, a sliding groove, 14, balls, 15, a hole groove, 16 and a pin rod.

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, the integrated single-end-face mechanical seal with end face lubrication comprises a rotating shaft 1, a movable ring assembly 2 and a static ring assembly 3, wherein the movable ring assembly 2 and the static ring assembly 3 are sleeved on the rotating shaft 1, pressing plates 4 are symmetrically arranged on the static ring assembly 3, the pressing plates 4 are in L-shaped arrangement, limiting blocks 5 are fixedly connected to the horizontal side ends of the pressing plates 4, and the movable ring assembly 2 is arranged between the upper side ends of the pressing plates 4 and the limiting blocks 5.

As shown in fig. 2-3, the moving ring assembly 2 includes a moving ring seat 6, a moving ring 7, a spring 8 and a spring seat 9, the moving ring seat 6 is sleeved on the rotating shaft 1, the moving ring 7 is sleeved on the moving ring seat 6, the spring seat 9 is arranged between opposite side walls of the moving ring 7 and the moving ring seat 6, and the spring 8 is uniformly and symmetrically arranged between the spring seat 9 and the side wall of the moving ring seat 6.

As shown in fig. 2, the stationary ring assembly 3 includes a stationary ring seat 10, a stationary ring 11, and a liquid inlet 12, the stationary ring seat 10 is sleeved on the opposite side of the rotating shaft 1 to the moving ring seat 6, the stationary ring 11 is disposed on the stationary ring seat 10, and the liquid inlet 12 is uniformly disposed on the stationary ring seat 10.

Wherein, the movable ring 7 and the movable ring seat 6 are provided with sliding grooves 13 on the side walls which are relatively far away from each other; balls 14 are arranged on the side end of the pressing plate 4 and the side wall of the limiting block 5, which are opposite to the movable ring seat 6 and the side wall of the movable ring, the balls 14 are rotatably embedded on the side end of the pressing plate 4 and the side wall of the limiting block 5, and the balls 14 are slidably arranged in the sliding grooves 13; the static ring 11 is uniformly provided with holes 15, and the inlets of the holes 15 correspond to the outlets of the liquid phase inlet 12; the horizontal end of the pressing plate 4 is provided with a pin rod 16 in a penetrating manner, and the other end of the pin rod 16 is connected with the stationary ring seat 10 in a threaded manner.

When the movable ring assembly is specifically used, the stationary ring assembly 3 and the movable ring assembly 2 are sequentially sleeved on the rotating shaft 1, the pressing plates 4 are symmetrically arranged on two sides of the movable ring assembly 2, the movable ring assembly 2 is arranged between the side ends of the pressing plates 4 and the limiting blocks 5, clamping and mounting are carried out on the movable ring assembly 2, the distance between the movable ring 7 and the stationary ring 11 can be guaranteed to be always attached due to the action of the springs 8, the pressing plates 4 are fixedly arranged on the stationary ring seat 10 through the pin rods 16, integrated mounting is realized, the movable ring assembly 2 is convenient to disassemble and overhaul, the balls 14 and the sliding grooves 13 can limit and fix the movable ring assembly 2, sealing medium is injected through the liquid phase inlet 12, so that the sealing medium flows into the annular surface between the movable ring 7 and the stationary ring 11 through the hole grooves 15, a fluid dynamic pressure liquid film is formed, friction between the movable ring 7 and the stationary ring 11 is reduced, and the service life of the movable ring is prolonged.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. An integrated single-ended mechanical seal with end lubrication, characterized by: including pivot, moving ring subassembly and quiet ring subassembly all overlap and locate in the pivot, the symmetry is equipped with the clamp plate on the quiet ring subassembly, the clamp plate is L type setting, fixed connection is equipped with the stopper on the clamp plate horizontal side, just moving ring subassembly locates between clamp plate upside end and the stopper.

2. An integrated single-ended mechanical seal with end lubrication according to claim 1, characterized by: the movable ring assembly comprises a movable ring seat, a movable ring, springs and spring seats, wherein the movable ring seat is sleeved on the rotating shaft, the movable ring is sleeved on the movable ring seat, the spring seats are arranged between the movable ring and the opposite side walls of the movable ring seat, and the springs are uniformly and symmetrically arranged between the spring seats and the side walls of the movable ring seat.

3. An integrated single-ended mechanical seal with end lubrication according to claim 2, characterized by: and sliding grooves are formed in the side walls, far away from the side walls, of the movable ring and the movable ring seat.

4. An integrated single-ended mechanical seal with end lubrication according to claim 3, wherein: the side ends of the pressing plates and the limiting blocks are respectively provided with balls relative to the side walls of the movable ring seat and the movable ring, the balls are rotatably embedded in the side ends of the pressing plates and the limiting blocks, and the balls are slidably arranged in the sliding grooves.

5. An integrated single-ended mechanical seal with end lubrication according to claim 1, characterized by: the static ring assembly comprises a static ring seat, a static ring and a liquid phase inlet, wherein the static ring seat is sleeved on one side of the rotating shaft opposite to the rotating ring seat, the static ring is arranged on the static ring seat, and the liquid phase inlet is uniformly arranged on the static ring seat.

6. An integrated single-ended mechanical seal with end face lubrication as defined in claim 5, wherein: and the static ring is uniformly provided with holes and grooves, and inlets of the holes and grooves correspond to outlets of the liquid phase inlet.

7. An integrated single-ended mechanical seal with end lubrication according to claim 1, characterized by: the horizontal end of the pressing plate is penetrated with a pin rod, and the other end of the pin rod is connected with the stationary ring seat in a threaded manner.