Mechanical sealing element stable in connection

Abstract

The utility model relates to the technical field of sealing elements, and discloses a mechanical sealing element stable in connection, which comprises a shaft sleeve, a transmission ring seat is sleeved on the surface of the shaft sleeve, heat conduction silica gel is fixedly connected on the surface of the transmission ring seat, and radiating fins are fixedly connected on the surface of the heat conduction silica gel. According to the mechanical sealing piece stable in connection, through the arrangement of the pressing assembly, the adjusting column and the adjusting hole, when the mechanical sealing piece is used, according to the spring compression amount needed by different devices, the position of the adjusting column in the adjusting hole is screwed, and when the limiting rod bears pressure, the downward pressing space changes, the stress area can be increased through the multiple compensation springs, and the stress is uniform; therefore, the stability of the connection of the sealing element is achieved, the stress deviation when a single spring is pressed down is avoided, enough contact pressure between the sealing element and the sealing surface can be ensured by the proper compression amount of the spring, a good sealing effect is achieved, and the adaptability and the temperature property of the sealing element are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing technical field especially relates to a kind of mechanical sealing element of stable connection. BACKGROUND

[0002] Mechanical seal refers to the device that at least one pair of end face perpendicular to rotation axis is kept to adhere and is relative to slide under the action of fluid pressure and compensation mechanism elastic force and the cooperation of auxiliary seal and prevents fluid leakage.For example, centrifugal pump, centrifuge, reaction kettle and compressor and other equipment key components, elastic force loading mechanism and auxiliary seal are metallic corrugated pipe mechanical seal, and we call it metal corrugated pipe seal.In light seal, there is also rubber corrugated tube as auxiliary seal, and the elastic force of rubber corrugated tube is limited, generally needs to be supplemented with spring to meet the loading elastic force.

[0003] The existing mechanical sealing element in actual use, transmission part will be in high speed, high torque and other requirements higher operation condition, friction can generate a large amount of heat, without heat dissipation function, inconvenient to improve the service life of machine seal.

[0004] Through searching existing patent: a mechanical sealing element (announcement number: CN204099604U), the utility model discloses a kind of mechanical sealing element, including by outer and inner static ring, dynamic ring and shaft hole sequentially, the static ring includes the first static ring and second static ring by screw detachable connection, the side of the second static ring is provided with threaded hole, the dynamic ring assembly includes dynamic ring, elastic member and dynamic ring gland, the dynamic ring is located at the side of static ring towards shaft hole, the dynamic ring gland and dynamic ring are mutually abutted, the dynamic ring and static ring are connected by elastic member, the dynamic ring gland and dynamic ring are mutually abutted.By the above technical scheme, the utility model sealing element installation is convenient to disassemble, sealing element internal component can be replaced, save material, and sealing effect is good.

[0005] The above patent has realized that sealing element is convenient to install and disassemble, but in the process of use, different equipment needs different spring compression amount, too big or too small will affect sealing effect, compression amount cannot be adjusted, inconvenient to improve the stability of connection and applicability.

[0006] Therefore, it is necessary to invent a kind of mechanical sealing element of stable connection to solve the above problems. UTILITY MODEL CONTENTS

[0007] The utility model solves the technical problem to provide a kind of mechanical sealing element of stable connection with higher practicality, and can be adjusted by simple operation, and the structure is relatively simple, solve the problem of the stability of connection and applicability in the process of use in the above background technology, different equipment needs different spring compression amount, too big or too small will affect sealing effect, compression amount cannot be adjusted.

[0008] In order to achieve the above object, the utility model discloses the following technical scheme to realize: a kind of stable mechanical seal of connection, including shaft sleeve, the surface of the shaft sleeve is sleeved with transmission ring seat, the surface of the transmission ring seat is fixedly connected with heat-conducting silica gel, the surface of the heat-conducting silica gel is fixedly connected with radiating fin, the side of the transmission ring seat is provided with several limit holes and three adjusting holes, the inside of the limit hole is fixedly connected with compression assembly, the inside of the adjusting hole is threadedly connected with adjusting column, the top of the compression assembly is clamped with dynamic ring, one end of the dynamic ring is clamped with dynamic ring seal ring, the other end of the dynamic ring is clamped with static ring assembly, one end of the static ring assembly is clamped with mechanical seal gland.

[0009] As a further scheme of the utility model, the top surface of the transmission ring seat is provided with three positioning holes, and the inside of the positioning hole is threadedly connected with a positioning pin.

[0010] As a further scheme of the utility model, the compression assembly includes a compensation spring fixedly connected to the inside of the limit hole, and the top surface of the compensation spring is fixedly connected with a thrust ring.

[0011] As a further scheme of the utility model, the other end of the thrust ring is fixedly connected with a limiting rod, the limiting rod is matched with the adjusting hole, and the limiting rod is convenient for adjusting the compression amount.

[0012] As a further scheme of the utility model, the static ring assembly includes a static ring clamped to one end of the dynamic ring, and the static ring is sleeved with a static ring seal ring at one end.

[0013] As a further scheme of the utility model, the surface of the mechanical seal gland is provided with a connecting hole around, and the inside of the connecting hole is threadedly connected with a connecting bolt.

[0014] As a further scheme of the utility model, one end of the mechanical seal gland is provided with a clamping groove, and the inside of the clamping groove is clamped with a gasket.

[0015] The utility model provides a kind of stable mechanical seal of connection, with the following beneficial effects:

[0016] 1. The stable mechanical seal connection, through the setting of the compression assembly, the adjusting column and the adjusting hole, in use, according to the spring compression amount required by different equipment, the adjusting column is screwed in the position of the adjusting hole, the pressure borne by the limiting rod changes, the stress area of the plurality of compensation springs can be increased, so that the stress is uniform, thereby achieving the stability of the seal connection, avoiding the stress deviation when the single spring is pressed down, and the proper spring compression amount can ensure that there is sufficient contact pressure between the seal and the sealing surface, thereby achieving good sealing effect and improving the adaptability and temperature resistance of the seal.

[0017] 2. The stable mechanical seal connection, through the setting of the heat-conducting silica gel and the heat dissipation fin, under the high-speed, high-torque and other high requirements working conditions, the transmission ring seat of the seal generates a large amount of heat through friction, the heat is quickly transferred to the heat dissipation fin through the heat-conducting silica gel, the heat dissipation fin increases the contact area with the outside, thereby dissipating heat for the transmission ring seat, avoiding the accumulation of heat in the transmission ring seat under high-speed and high-load working conditions, causing the temperature of the transmission ring seat to rise, affecting the normal work and service life of the transmission system, and improving the working stability and service life of the seal. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a whole structure schematic view of the utility model;

[0019] Fig. 2 It is a compression assembly structure schematic view of the utility model;

[0020] Fig. 3 It is a static ring assembly structure schematic view of the utility model;

[0021] Fig. 4 It is a heat dissipation fin structure schematic view of the utility model.

[0022] In the drawing: 1, shaft sleeve; 2, transmission ring seat; 3, heat-conducting silica gel; 4, heat dissipation fin; 5, compression assembly; 501, compensation spring; 502, thrust ring; 503, clamping column; 504, limiting rod; 6, adjusting column; 7, dynamic ring; 8, dynamic ring seal ring; 9, static ring assembly; 901, static ring; 902, static ring seal ring; 10, mechanical seal compression cover; 11, positioning pin; 12, connecting bolt; 13, gasket. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figs. 1 to 4The utility model provides a kind of technical scheme: a kind of stable mechanical seal of connection, including shaft sleeve 1, the surface sleeve of shaft sleeve 1 is connected with transmission ring seat 2, the surface fixed connection heat-conducting silica gel 3 of transmission ring seat 2, the surface fixed connection of heat-conducting silica gel 3 has heat dissipation fin 4, by the setting of heat-conducting silica gel 3, heat dissipation fin 4, transmission ring seat 2 of seal will generate a large amount of heat under high speed, high torque and other requirements higher working conditions, heat is quickly transferred to heat dissipation fin 4 by heat-conducting silica gel 3, heat dissipation fin 4 increases the contact area with outside, to carry out heat dissipation for transmission ring seat 2, avoid heat accumulation in transmission ring seat 2 under high speed, high load working condition, lead to transmission ring seat 2 temperature rises, affect the normal work and life of transmission system, improve the working stability and life of seal, the side of transmission ring seat 2 is equipped with several limit holes and three adjusting holes, the inside fixed connection of limit hole has compression assembly 5, adjusting hole is screw-threaded and connected adjusting column 6, by the setting of compression assembly 5, adjusting column 6 and adjusting hole, in use, according to the spring compression amount required by different equipment, adjusting column 6 is twisted in the position of adjusting hole, the pressure that the limiting rod 504 bears changes in the space of pressing down, several compensation springs 501 can increase stress area, so that it is stressed evenly, to reach the stability of seal connection, avoid the stress deviation when single spring presses down, proper spring compression amount can ensure that there is enough contact pressure between seal and sealing surface, to reach good sealing effect, improve the adaptability and temperature of seal, the top of compression assembly 5 is clamped with dynamic ring 7, one end of dynamic ring 7 is clamped with dynamic ring seal ring 8, the other end of dynamic ring 7 is clamped with static ring assembly 9, one end of static ring assembly 9 is clamped with mechanical seal gland 10;

[0025] The top surface of transmission ring seat 2 is provided with three positioning holes, and the inside of the positioning hole is screw-threaded and connected with a positioning pin 11, and the positioning pin 11 is provided to play a fixing role.

[0026] The compression assembly 5 includes a compensation spring 501 fixedly connected to the inside of the limit hole, a thrust ring 502 fixedly connected to the top surface of the compensation spring 501, and three clamping columns 503 fixedly connected to one end of the thrust ring 502, and the compression assembly 5 is provided to play a role of adjusting the compression amount.

[0027] The other end of the thrust ring 502 is fixedly connected with a limiting rod 504, and the limiting rod 504 is adapted to the adjusting hole, and the limiting rod 504 is provided to play a role of stability in connection.

[0028] The static ring assembly 9 includes a static ring 901 clamped to one end of the dynamic ring 7, a static ring seal ring 902 sleeved to one end of the static ring 901, and the static ring assembly 9 is provided to play a role of connecting sealing.

[0029] The connecting hole is internally screwed with a connecting bolt 12, and the connecting bolt 12 is arranged to connect with the equipment;

[0030] The sealing gasket connecting device is characterized in that the machine seal cover 10 is internally screwed with a connecting bolt 12, and the connecting bolt 12 is arranged to connect with the equipment;

[0031] The working steps of the device are as follows:

[0032] The first step is to adjust the position of the adjusting column 6 in the adjusting hole according to the spring compression amount required by different equipment, so that the pressure borne by the limiting rod 504 changes, and the stress area of the plurality of compensation springs 501 can be increased to make the stress uniform, thereby achieving the stability of the sealing piece connection;

[0033] The second step is that the transmission ring seat 2 of the sealing piece generates a large amount of heat through friction under high-speed, high-torque and other high-demand working conditions, and the heat is quickly transferred to the heat dissipation fins 4 through the heat-conducting silica gel 3.

[0034] It should be noted that the device structure and the drawings mainly describe the principle of the device, and the power mechanism, the power supply system and the control system are not completely described, but the power mechanism, the power supply system and the control system can be clearly known under the premise that the above-mentioned principles of the device are understood by the person skilled in the art, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art.

[0035] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art are known or obtained by conventional experimental methods.

[0036] Although the embodiments of the device have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the device, and the scope of the device is defined by the appended claims and their equivalents.

Claims

1. A mechanically stable connection of a mechanical seal comprising a bushing (1), characterized in that: The surface sleeve of the shaft sleeve (1) is sleeved with a transmission ring seat (2), the surface of the transmission ring seat (2) is fixedly connected with heat-conducting silica gel (3), the surface of the heat-conducting silica gel (3) is fixedly connected with a heat dissipation fin (4), a plurality of limiting holes and three adjusting holes are formed in one side of the transmission ring seat (2), the inside of the limiting hole is fixedly connected with a compression assembly (5), the inside of the adjusting hole is threadedly connected with an adjusting column (6), the top end of the compression assembly (5) is clamped with a dynamic ring (7), one end of the dynamic ring (7) is clamped with a dynamic ring sealing ring (8), the other end of the dynamic ring (7) is clamped with a static ring assembly (9), one end of the static ring assembly (9) is clamped with a mechanical seal gland (10).

2. A mechanically stable connection according to claim 1, characterized in that: The top surface of the transmission ring seat (2) is provided with three positioning holes, and the inside of the positioning hole is threadedly connected with a positioning pin (11).

3. A mechanically stable connection according to claim 1, characterized in that: The compression assembly (5) comprises a compensation spring (501) fixedly connected to the inside of the limiting hole, the top surface of the compensation spring (501) is fixedly connected with a thrust ring (502), one end of the thrust ring (502) is fixedly connected with three clamping columns (503).

4. A mechanically stable connection according to claim 3, characterized in that: The other end of the thrust ring (502) is fixedly connected with a limiting rod (504), and the limiting rod (504) is matched with the adjusting hole.

5. A mechanically stable connection according to claim 1, characterized in that: The static ring assembly (9) comprises a static ring (901) clamped at one end of the dynamic ring (7), and the static ring (901) is sleeved with a static ring sealing ring (902) at one end.

6. A mechanically stable connection according to claim 1, characterized in that: The surface of the mechanical seal gland (10) is provided with a connecting hole around, and the inside of the connecting hole is threadedly connected with a connecting bolt (12).

7. A mechanically stable connection according to claim 1, characterized in that: One end of the mechanical seal gland (10) is provided with a clamping groove, and the inside of the clamping groove is clamped with a gasket (13).

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