CN214466095U

CN214466095U - Mechanical sealing element

Info

Publication number: CN214466095U
Application number: CN202120438150.6U
Authority: CN
Inventors: 吴会明
Original assignee: Lishui Kairui Bearing Co ltd
Current assignee: Lishui Kairui Bearing Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-10-22
Anticipated expiration: 2031-03-01

Abstract

The utility model discloses a mechanical sealing element, including rotating ring, sealing washer, quiet ring sum spring, the outside embedding sealing washer of rotating ring, one side of rotating ring is provided with quiet ring, and the inside of spliced pole is provided with the inoxidizing coating, and one side of articulamentum is provided with the insulating layer, and one side of insulating layer is provided with the buffer layer, and one side of buffer layer is provided with the back up coat. The utility model discloses a spliced pole adopts the inoxidizing coating, the insulating layer, buffer layer and back up coat multilayer design, it is firmer to make the exterior structure of spliced pole through the inoxidizing coating, reduce the heat that the sealing member received through the insulating layer, prevent that high temperature warp to break, cushion mechanical equipment's vibrations through the buffer layer, prevent the too big sealing member that damages of shaking force, both sides contact through the buffer subassembly on the inner wall of rotating ring and spliced pole, through the blotter, the effort of spliced pole tip both sides is cushioned in the use of elasticity post and elastic component combination, prevent that the spliced pole from breaking, influence mechanical equipment's use.

Description

Mechanical sealing element

Technical Field

The utility model relates to a mechanical seal technical field, in particular to mechanical seal spare.

Background

The mechanical seal is a shaft seal device which is kept in fit by one or a plurality of pairs of end faces which slide relatively and are vertical to a shaft under the action of fluid pressure and the elasticity of a compensation mechanism and matched with auxiliary seal to achieve leakage resistance. The mechanical sealing part belongs to one of precise mechanical basic elements with complex structures and is a key part of equipment such as various pumps, reaction synthesis kettles, turbine compressors, submersible motors and the like. Its sealing performance and service life depend on many factors such as the type of selection, the accuracy of the machine, proper installation and use, etc. The spring in the mechanical sealing element can generate pressing force to keep the movable ring end and the static ring end to be tightly contacted, and the spring is a buffer element which can compensate the friction surface non-sticking caused by the shaft jumping and the machining error.

When the sealing surface between the mechanical sealing element and the rotating shaft in the prior art is in sliding friction, heat is generated, so that the sealing rubber ring is heated, softened and vulcanized, finally loses elasticity to generate a leakage condition, and the corrosion rate of the sealing rubber ring is aggravated besides the condition that the medium can be changed due to overheating. Causing deformation of the metal parts, cracking of the alloy surfaces, and certain coating cracks, leading to other dangerous situations, causing unnecessary economic loss or personnel danger.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a mechanical seal spare, possible sealed effect is better, sound construction.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a mechanical sealing element, which comprises a movable ring, a sealing ring, a static ring and a spring, wherein the sealing ring is embedded in the outer side of the movable ring, a static ring is arranged on one side of the dynamic ring, the dynamic ring and the static ring are connected through a connecting column, a protective layer is arranged inside the connecting column, a connecting layer is arranged on one side of the protective layer, a sealing layer is arranged in the connecting layer, a heat insulation layer is arranged on one side of the connecting layer, a buffer layer is arranged on one side of the heat insulation layer, a reinforcing layer is arranged on one side of the buffer layer, a spring is arranged on one side of the static ring, a spring seat is arranged at one end of the spring, the spring and the spring seat are connected through a fixed screw, a buffer component is arranged in the movable ring, the buffer component is characterized in that a cavity is formed in the buffer component, a buffer pad is arranged in the cavity, and an elastic column and an elastic piece are arranged on one side of the buffer pad.

As an optimal technical scheme of the utility model, the inoxidizing coating adopts high manganese steel to form for the material preparation, the insulating layer adopts glass fiber to form for the material preparation.

As an optimized technical scheme of the utility model, the buffer layer adopts polyurethane foam to form for the material preparation, the back up coat adopts to form for magnesium alloy material preparation.

As an optimal technical scheme of the utility model, connect through the articulamentum between inoxidizing coating, insulating layer, buffer layer and the back up coat, and the surface of articulamentum is with the organosilicon gluing agent, the sealing layer adopts fluorine plain rubber to form for the material preparation.

As an optimal technical scheme of the utility model, the spring holder is hollow ring, with the spring scarf joint, spring holder and spring fixed connection.

As an optimal technical scheme of the utility model, the inner wall of rotating ring is provided with the buffering subassembly of symmetry, blotter and elastic component and elasticity post fixed connection, and the blotter adopts natural rubber to form for the material preparation.

As an optimal technical scheme of the utility model, the elasticity post adopts butyl rubber to form for the material preparation, the tip of elasticity post and elastic component all with buffering subassembly fixed connection.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a spliced pole adopts the inoxidizing coating, the insulating layer, buffer layer and back up coat multilayer design, make the exterior structure of spliced pole firmer through the inoxidizing coating, reduce the heat that the sealing member received through the insulating layer, prevent that high temperature warp to break, cushion mechanical equipment's vibrations through the buffer layer, prevent the too big sealing member that damages of shaking force, make the structure of spliced pole firmer through the back up coat, make the leakproofness between each layer better through the sealing layer, both sides contact through the buffer subassembly on the inner wall of rotating ring and spliced pole, through the blotter, the effort of spliced pole tip both sides is cushioned in the combination use of elasticity post and elastic component, prevent that the spliced pole from breaking, influence mechanical equipment's use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial structural schematic diagram of the present invention;

FIG. 3 is a schematic plan view of a cushioning assembly;

FIG. 4 is a schematic view of a portion of the connecting column;

in the figure: 1. a moving ring; 2. a seal ring; 3. connecting columns; 4. a stationary ring; 5. a spring; 6. a spring seat; 7. a buffer assembly; 8. a cavity; 9. a cushion pad; 10. an elastic column; 11. an elastic member; 12. a protective layer; 13. a connecting layer; 14. a sealing layer; 15. a thermal insulation layer; 16. a buffer layer; 17. and a reinforcing layer.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1

As shown in fig. 1-4, the utility model provides a mechanical sealing element, which comprises a movable ring 1, a sealing ring 2, a stationary ring 4 and a spring 5, wherein the sealing ring 2 is embedded in the outer side of the movable ring 1, the stationary ring 4 is arranged on one side of the movable ring 1, the movable ring 1 is connected with the stationary ring 4 through a connecting column 3, a protective layer 12 is arranged in the connecting column 3, a connecting layer 13 is arranged on one side of the protective layer 12, a sealing layer 14 is arranged in the connecting layer 13, a thermal insulation layer 15 is arranged on one side of the connecting layer 13, a buffer layer 16 is arranged on one side of the thermal insulation layer 15, a reinforcing layer 17 is arranged on one side of the buffer layer 16, the spring 5 is arranged on one side of the stationary ring 4, a spring seat 6 is arranged at one end of the spring 5, the spring 5 is connected with the spring seat 6 through a fixing screw, a buffer component 7 is arranged in the movable ring 1, a cavity 8 is arranged in the buffer component 7, a buffer pad 9 is arranged in the cavity 8, one side of the cushion pad 9 is provided with an elastic post 10 and an elastic member 11.

Furthermore, the protective layer 12 is made of high manganese steel, the thermal insulation layer 15 is made of glass fiber, the surface layer is rapidly subjected to work hardening through the material used for the protective layer 12 under strong impact and extrusion conditions, the hardened layer has good wear resistance while the core part still maintains good toughness and plasticity of austenite, and the material used for the thermal insulation layer 15 enables the tensile strength to be high, the elastic coefficient to be high, the rigidity to be good, the fire resistance to be realized and the water absorption to be small.

The buffer layer 16 is made of polyurethane foam plastic, the reinforcing layer 17 is made of magnesium alloy material, the buffer layer 16 is made of material, the rebound resilience, the buffering performance and the use temperature range are good, and the material used by the reinforcing layer 17 is small in density, high in strength, large in elastic modulus, good in heat dissipation, good in shock absorption and good in impact load bearing capacity.

The protective layer 12, the thermal insulation layer 15, the buffer layer 16 and the reinforcing layer 17 are connected through the connecting layer 13, the surface of the connecting layer 13 is attached with an organic silicon adhesive, the sealing layer 14 is made of fluorine rubber, the connecting layers 13 enable connection between the layers to be firmer, and materials used through the sealing layer 14 enable high temperature resistance and good sealing performance.

Spring holder 6 is hollow ring, and with spring 5 scarf joint, spring holder 6 and spring 5 fixed connection prevent that spring 5 from taking place deformation through the position of spring holder 6 steady spring 5.

The inner wall of the moving ring 1 is provided with symmetrical buffer assemblies 7, a buffer pad 9 is fixedly connected with an elastic piece 11 and an elastic column 10, the buffer pad 9 is made of natural rubber, and the material used by the buffer pad 9 enables the elastic ring to be large, high in tensile strength, good in tear resistance and electrical insulation, and good in wear resistance and cold resistance.

The elastic column 10 is made of butyl rubber, the end parts of the elastic column 10 and the elastic part 11 are fixedly connected with the buffer component 7, and the material used by the elastic column 10 ensures that the air tightness, ozone resistance, aging resistance and heat resistance are good, the vibration absorption and damping characteristics are good, and the electrical insulation is also very good.

Specifically, in the using process, the outer side of the movable ring 1 is embedded with the sealing ring 2, the movable ring 1 is connected with the stationary ring 4 through the connecting column 3, the protective layer 12, the heat insulation layer 15, the buffer layer 16 and the reinforcing layer 17 are arranged inside the connecting column 3, the protective layer 12 is made of high manganese steel, the surface layer is rapidly processed and hardened through the material used by the protective layer 12 under the conditions of strong impact and extrusion, so that the hardened layer has good wear resistance while the core part still maintains good toughness and plasticity of austenite, the outer structure of the connecting column 3 is firmer, the heat insulation layer 15 is made of glass fiber, the material used by the heat insulation layer 15 has high tensile strength, high elastic coefficient, good rigidity, non-combustibility and small water absorption, the heat received by a sealing element is reduced through the heat insulation layer 15, and the deformation and breakage caused by overhigh temperature are prevented, the buffer layer 16 is made of polyurethane foam plastic, the buffer layer 16 is made of materials, the materials used by the buffer layer 16 enable the rebound resilience to be good, the buffer performance to be good, the service temperature range to be wide, the vibration of mechanical equipment is buffered, the sealing part is prevented from being damaged due to overlarge vibration force, the reinforcing layer 17 is made of magnesium alloy materials, the materials used by the reinforcing layer 17 enable the density to be small, the strength to be high, the elastic modulus to be large, the heat dissipation to be good, the shock absorption to be good and the impact load bearing capacity to be good, the structure of the connecting column 3 to be firmer, the protective layer 12, the heat insulation layer 15, the buffer layer 16 and the reinforcing layer 17 to be connected through the connecting layer 13, the organic silicon adhesive is attached to the surface of the connecting layer 13, the connection among the layers is firmer through the connecting layer 13, the sealing layer 14 is made of fluorine rubber, the materials used by the sealing layer 14 enable the high-temperature-resistant material to be good, the use temperature-resistant material is formed by attaching the organic silicon adhesive, The sealing performance is good, the sealing performance between each layer is better, the protective layer 12 is positioned on the outmost layer, the heat insulating layer 15, the buffer layer 16 and the reinforcing layer 17 are sequentially wrapped by the protective layer 12, the reinforcing layer 17 is positioned on the innermost layer, the stationary ring 4 is connected with the spring seat 6 through the spring 5, the spring 5 and the spring seat 6 are connected through the fixing screws, the position of the spring 5 is stabilized through the spring seat 6, the inner wall of the movable ring 1 is provided with the symmetrical buffer components 7, the buffer components 7 are in contact with the two sides of the connecting column 3, the inside of the buffer components 7 is provided with the cavity 8, the inside of the cavity 8 is provided with the buffer cushion 9, the buffer cushion 9 is made of natural rubber, the material used by the buffer cushion 9 is large in elasticity, high in tensile strength, excellent in tear resistance and electric insulation, good in wear resistance and cold resistance, one side of the buffer cushion 9 is provided with the elastic column 10 and the elastic piece 11, the elastic column 10 is made of butyl rubber, the materials used by the elastic column 10 enable the air tightness, ozone resistance, aging resistance and heat resistance to be good, the vibration absorption and damping characteristics to be good, the electric insulation performance to be very good, the acting force on the two sides of the end part of the connecting column 3 is buffered through the elastic column 10 and the elastic piece 11, and the connecting column 3 is prevented from being broken to influence the use of mechanical equipment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical sealing element comprises a moving ring (1), a sealing ring (2), a static ring (4) and a spring (5), and is characterized in that the sealing ring (2) is embedded in the outer side of the moving ring (1), the static ring (4) is arranged on one side of the moving ring (1), the moving ring (1) is connected with the static ring (4) through a connecting column (3), a protective layer (12) is arranged inside the connecting column (3), a connecting layer (13) is arranged on one side of the protective layer (12), a sealing layer (14) is arranged inside the connecting layer (13), a heat insulating layer (15) is arranged on one side of the connecting layer (13), a buffer layer (16) is arranged on one side of the heat insulating layer (15), a reinforcing layer (17) is arranged on one side of the buffer layer (16), the spring (5) is arranged on one side of the static ring (4), a spring seat (6) is arranged at one end of the spring (5), and the spring (5) is connected with the spring seat (6) through a fixing screw, a buffer component (7) is arranged in the movable ring (1), a cavity (8) is arranged in the buffer component (7), a cushion pad (9) is arranged in the cavity (8), and an elastic column (10) and an elastic piece (11) are arranged on one side of the cushion pad (9).

2. A mechanical seal according to claim 1, wherein the protective layer (12) is made of high manganese steel and the thermal insulation layer (15) is made of glass fiber.

3. The mechanical seal according to claim 1, wherein the buffer layer (16) is made of polyurethane foam, and the reinforcing layer (17) is made of magnesium alloy.

4. The mechanical seal according to claim 1, wherein the protective layer (12), the thermal insulation layer (15), the buffer layer (16) and the reinforcing layer (17) are connected through a connecting layer (13), a silicone adhesive is attached to the surface of the connecting layer (13), and the sealing layer (14) is made of a fluorine rubber.

5. A mechanical seal according to claim 1, characterized in that the spring seat (6) is a hollow circular ring, which engages with the spring (5), the spring seat (6) being fixedly connected to the spring (5).

6. A mechanical seal according to claim 1, characterized in that the inner wall of the rotating ring (1) is provided with symmetrical cushion components (7), the cushion (9) is fixedly connected with the elastic member (11) and the elastic column (10), and the cushion (9) is made of natural rubber.

7. The mechanical seal according to claim 1, wherein the elastic column (10) is made of butyl rubber, and the ends of the elastic column (10) and the elastic member (11) are fixedly connected with the buffer assembly (7).