High-temperature-resistant mechanical sealing washer structure

Abstract

The utility model relates to the technical field of sealing washers, in particular to a high-temperature-resistant mechanical sealing washer structure. The damping device comprises a metal steel ring, damping springs are symmetrically arranged on the two sides of the surface of the metal steel ring, damping mechanisms are sleeved with the damping springs, an inner-layer rubber ring is fixedly installed at one end of each damping mechanism, a filling layer is fixedly arranged on one side of each inner-layer rubber ring, and an outer-layer rubber ring is fixedly arranged on one side of each filling layer. And a high-temperature-resistant assembly is fixedly arranged on one side of the outer-layer rubber ring. According to the high-temperature-resistant mechanical sealing gasket structure, through the arrangement of the high-temperature-resistant assembly and the filling layer, the filling layer is used for improving the structural rigidity of the inner-layer rubber ring and the outer-layer rubber ring, is not prone to deformation and aging and is more wear-resistant, and the high-temperature-resistant performance of the gasket structure can be improved through the polytetrafluoroethylene layer and the polyurethane layer; and the sealing gasket is prevented from hot melting deformation in a high-temperature environment to influence the sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing gaskets, and more specifically, to a high-temperature resistant mechanical sealing gasket structure. Background Art

[0002] Mechanical seal refers to a device that prevents fluid leakage, which is composed of at least a pair of end faces perpendicular to the rotation axis. Under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and with the cooperation of auxiliary seals, the pair of end faces remain in contact and relatively slide. The sealing gasket is an important component of the mechanical seal, and it seals by the interference fit between the rubber body and the contact components.

[0003] However, the traditional mechanical sealing gasket structure has poor high-temperature resistance. When used in a high-temperature environment, the rubber body is prone to hot melt deformation, affecting the sealing effect. In addition, when the sealing gasket structure is impacted on both sides of the connection end, it is also prone to deformation and damage, affecting the service life. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a high-temperature resistant mechanical sealing gasket structure to solve the problems of poor high-temperature resistance and easy deformation and damage when impacted on both sides of the connection end.

[0005] To achieve the above purpose, a high-temperature resistant mechanical sealing gasket structure is provided, which includes a metal steel ring. On both sides of the surface of the metal steel ring, shock-absorbing springs are symmetrically arranged. A damping mechanism is sleeved inside the shock-absorbing spring. One end of the damping mechanism is fixedly installed with an inner rubber ring. One side of the inner rubber ring is fixedly provided with a filling layer. One side of the filling layer is fixedly provided with an outer rubber ring. One side of the outer rubber ring is fixedly provided with a high-temperature resistant component.

[0006] As a further improvement of this technical solution, the damping mechanism includes a fixed tube sleeved inside the shock-absorbing spring. A return pipe is penetrated on the surface of the fixed tube. A telescopic tube is slidably arranged inside the fixed tube. The inside of the fixed tube is filled with hydraulic oil, and the fixed tube facilitates the sliding of the telescopic tube inside.

[0007] As a further improvement of this technical solution, the high-temperature resistant component includes a polytetrafluoroethylene layer fixedly arranged on one side of the outer rubber ring. One side of the polytetrafluoroethylene layer is fixedly provided with a polyurethane layer. The polytetrafluoroethylene layer and the polyurethane layer are used to improve the high-temperature resistance.

[0008] As a further improvement of this technical solution, the material of the filling layer is calcium silicate. The calcium silicate filling layer is used to improve the anti-aging performance, rigidity and wear resistance of the rubber ring.

[0009] As a further improvement of the technical solution, one end of the fixed pipe is fixedly connected to the metal steel ring, and the other ends of the shock-absorbing spring and the telescopic pipe are both fixedly connected to the inner rubber ring. The shock-absorbing spring is used to shock-absorb the washer structure.

[0010] As a further improvement of the technical solution, the number of the shock-absorbing springs and the damping mechanisms is several groups, and several groups of the shock-absorbing springs and the damping mechanisms are distributed in an annular array. The damping mechanism is used to consume the stored energy of the shock-absorbing spring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the high-temperature resistant mechanical seal washer structure, through the setting of the high-temperature resistant component and the filling layer, the filling layer is used to improve the structural rigidity of the inner rubber ring and the outer rubber ring, making it not easy to deform and age, more wear-resistant. The polytetrafluoroethylene layer and the polyurethane layer can improve the high-temperature resistant performance of the washer structure, avoiding the hot melting and deformation of the seal washer in a high-temperature environment and affecting the sealing effect.

[0013] 2. In the high-temperature resistant mechanical seal washer structure, through the setting of the shock-absorbing spring and the damping mechanism, when the two ports connected to the seal washer impact the seal washer, the shock-absorbing spring deforms to absorb the impact force. At the same time, the telescopic pipe expands and contracts inside the fixed pipe, squeezing the hydraulic oil into the return pipe to consume the energy absorbed by the shock-absorbing spring, achieving the effect of buffering and shock-absorbing the seal washer structure and avoiding the structural deformation and damage caused by the impact of the two connecting ends on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the structural schematic diagram of the shock-absorbing spring and the damping mechanism of the present utility model;

[0016] Figure 3 is the structural schematic diagram of the filling layer of the present utility model;

[0017] Figure 4 is the structural schematic diagram of the high-temperature resistant component of the present utility model.

[0018] The meanings of each label in the figure are as follows:

[0019] 1. Metal steel ring; 2. Shock-absorbing spring; 3. Damping mechanism; 301. Fixed pipe; 302. Return pipe; 303. Telescopic pipe; 4. Inner rubber ring; 5. Filling layer; 6. Outer rubber ring; 7. High-temperature resistant component; 701. Polytetrafluoroethylene layer; 702. Polyurethane layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0023] Please refer to Figures 1-4 As shown, the purpose of this embodiment is to provide a high-temperature resistant mechanical seal washer structure, including a metal steel ring 1. Shock-absorbing springs 2 are symmetrically arranged on both sides of the surface of the metal steel ring 1. A damping mechanism 3 is sleeved inside the shock-absorbing spring 2. Through the arrangement of the shock-absorbing spring 2 and the damping mechanism 3, when the two ports connected to the seal washer impact the seal washer, the shock-absorbing spring 2 deforms and absorbs the impact force. At the same time, the telescopic tube 303 telescopes inside the fixed tube 301, squeezing the hydraulic oil into the return tube 302, consuming the energy absorbed by the shock-absorbing spring 2, achieving the effect of buffering and shock-absorbing the seal washer structure, and avoiding structural deformation and damage caused by the impact of the two connecting ends on both sides;

[0024] One end of the damping mechanism 3 is fixedly installed with an inner rubber ring 4. One side of the inner rubber ring 4 is fixedly provided with a filling layer 5. One side of the filling layer 5 is fixedly provided with an outer rubber ring 6. One side of the outer rubber ring 6 is fixedly provided with a high-temperature resistant component 7. Through the settings of the high-temperature resistant component 7 and the filling layer 5, the filling layer 5 is used to improve the structural rigidity of the inner rubber ring 4 and the outer rubber ring 6, making them not easily deformed and aged, more wear-resistant. The polytetrafluoroethylene layer 701 and the polyurethane layer 702 can improve the high-temperature resistant performance of the gasket structure, avoiding the hot melting and deformation of the sealing gasket in a high-temperature environment and affecting the sealing effect.

[0025] Please refer to Figure 2 , the damping mechanism 3 includes a fixed tube 301 sleeved inside the shock-absorbing spring 2. A return pipe 302 is penetrated on the surface of the fixed tube 301. A telescopic tube 303 is slidably arranged inside the fixed tube 301. The inside of the fixed tube 301 is filled with hydraulic oil.

[0026] Through the setting of the damping mechanism 3, it plays a role in consuming the energy absorbed by the shock-absorbing spring 2.

[0027] Please refer to Figure 4 , the high-temperature resistant component 7 includes a polytetrafluoroethylene layer 701 fixedly arranged on one side of the outer rubber ring 6. A polyurethane layer 702 is fixedly arranged on one side of the polytetrafluoroethylene layer 701.

[0028] Through the setting of the high-temperature resistant component 7, it plays a role in improving the high-temperature resistant performance of the sealing gasket.

[0029] Please refer to Figure 3 , the material of the filling layer 5 is calcium silicate.

[0030] Through the setting of the filling layer 5, it is used to improve the structural rigidity of the inner rubber ring 4 and the outer rubber ring 6, making them not easily deformed and aged, more wear-resistant.

[0031] Please refer to Figure 2 , one end of the fixed tube 301 is fixedly connected to the metal steel ring 1. The other ends of the shock-absorbing spring 2 and the telescopic tube 303 are both fixedly connected to the inner rubber ring 4.

[0032] Through the setting of the fixed tube 301, it plays a role in facilitating the sliding of the telescopic tube 303.

[0033] Please refer to Figure 2 , the numbers of the shock-absorbing springs 2 and the damping mechanisms 3 are both several groups. The several groups of shock-absorbing springs 2 and damping mechanisms 3 are distributed in a circular array.

[0034] Through the setting of the shock-absorbing spring 2, it plays a role in absorbing impact force.

[0035] Working steps: The filling layer 5 is used to improve the structural rigidity of the inner rubber ring 4 and the outer rubber ring 6, making it not easy to deform and age, more wear-resistant. The polytetrafluoroethylene layer 701 and the polyurethane layer 702 can improve the high-temperature resistance of the washer structure, avoiding the hot melting and deformation of the sealing washer in a high-temperature environment and affecting the sealing effect.

[0036] When impacts are generated on the sealing washer by the two ports connected to the sealing washer, the shock-absorbing spring 2 deforms to absorb the impact force. At the same time, the telescopic tube 303 telescopically moves inside the fixed tube 301, squeezing the hydraulic oil into the return pipe 302 to consume the energy absorbed by the shock-absorbing spring 2, buffering and damping the structure of the sealing washer, and avoiding the structural deformation and damage caused by the impacts of the two connecting ends on both sides.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high temperature resistant mechanical sealing gasket structure, characterized in that: The invention comprises a metal steel ring (1), shock-absorbing springs (2) are symmetrically arranged on both sides of the surface of the metal steel ring (1), a damping mechanism (3) is sleeved inside the shock-absorbing spring (2), an inner rubber ring (4) is fixedly installed at one end of the damping mechanism (3), a filling layer (5) is fixedly arranged on one side of the inner rubber ring (4), an outer rubber ring (6) is fixedly arranged on one side of the filling layer (5), and a high-temperature resistant component (7) is fixedly arranged on one side of the outer rubber ring (6).

2. The high temperature resistant mechanical sealing gasket structure according to claim 1, characterized in that: The damping mechanism (3) comprises a fixed tube (301) sleeved inside the shock absorbing spring (2), a return tube (302) is provided through the surface of the fixed tube (301), a telescopic tube (303) is slidably provided inside the fixed tube (301), and the interior of the fixed tube (301) is filled with hydraulic oil.

3. The high temperature resistant mechanical sealing gasket structure according to claim 1, characterized in that: The high temperature resistant component (7) comprises a polytetrafluoroethylene layer (701) fixedly arranged on one side of the outer rubber ring (6), and a polyurethane layer (702) is fixedly arranged on one side of the polytetrafluoroethylene layer (701).

4. The high temperature resistant mechanical sealing gasket structure according to claim 1, characterized in that: The material of the filling layer (5) is calcium silicate.

5. The high temperature resistant mechanical sealing gasket structure according to claim 2, characterized in that: One end of the fixed tube (301) is fixedly connected to the metal steel ring (1), and the other ends of the shock absorbing spring (2) and the telescopic tube (303) are fixedly connected to the inner rubber ring (4).

6. The high temperature resistant mechanical sealing gasket structure according to claim 1, characterized in that: The number of the shock absorbing springs (2) and the damping mechanisms (3) is a plurality of groups, and the plurality of groups of the shock absorbing springs (2) and the damping mechanisms (3) are distributed in a ring array.

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