CN213298821U

CN213298821U - Mechanical sealing structure

Info

Publication number: CN213298821U
Application number: CN202021491499.8U
Authority: CN
Inventors: 马小江
Original assignee: Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Current assignee: Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-05-28
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a mechanical seal structure for solve the fast problem of mechanical seal structure wearing and tearing, belong to the sealed technical field of chemical pump, this mechanical seal structure is including installing sealed rotating ring subassembly and the sealed quiet ring on the hollow shaft, sealed rotating ring subassembly comprises rotating ring base and rotating ring head, one side that the rotating ring head rests near the rotating ring base is seted up the counter bore, the spring has been placed in the counter bore, the spring preforming is installed in the spring outside, one side that the rotating ring base was kept away from to the rotating ring head is installed sealed quiet ring, sealed quiet ring and rotating ring head constitute mechanical seal friction pair; the utility model discloses can make the vice contact surface atress of friction even, the wearing and tearing volume keeps unanimous, avoids taking place to grind inclined to one side phenomenon, optimizes the vice material of mechanical seal friction simultaneously through selecting for the vice wearing and tearing consumption volume is minimum at the operation in-process of friction, and it is fast to have solved the mechanical seal wearing and tearing, and the short problem of life cycle improves mechanical seal life by a wide margin, has reduced the cost of maintenance of enterprise.

Description

Mechanical sealing structure

Technical Field

A mechanical sealing structure belongs to the technical field of chemical pumps, and particularly relates to the technical field of chemical pump sealing.

Background

The mechanical seal is the most common shaft seal mode of water pumps and chemical pumps, and the service life of a friction pair directly determines the service cycle and the maintenance frequency of the pump. The self-absorption chemical pump is used for conveying the prepared collecting agent in the flotation agent preparation process, the original mechanical seal of the pump is quickly worn in the use process, the pump runs for about 2 months, the phenomenon of oil leakage and collecting agent leakage begins to occur at the position of a pump shaft, after the pump runs, the equipment platform has more agents, the ground is wet and smooth, and the safety risk of post operation is increased; meanwhile, the frequency of overhauling and replacing the mechanical seal is high, and the maintenance cost of enterprises is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a mechanical seal structure, can make the vice contact surface atress of friction even, the wearing and tearing volume keeps unanimous, avoids taking place to grind the inclined to one side phenomenon, simultaneously through selecting the vice material of mechanical seal friction of optimization for the vice wearing and tearing consumption volume of friction is minimum in the operation process, has solved that mechanical seal wearing and tearing are fast, and life cycle is short's problem improves mechanical seal life by a wide margin, has reduced enterprise cost of maintenance.

The utility model adopts the technical scheme as follows:

the utility model provides a mechanical seal structure, is including installing sealed rotating ring subassembly and the sealed quiet ring on the hollow shaft, sealed rotating ring subassembly comprises rotating ring base and rotating ring head, the counter bore is seted up to one side that the rotating ring head was close to the rotating ring base, the spring has been placed in the counter bore, the spring preforming is installed in the spring outside, the rotating ring head is kept away from one side of rotating ring base and is installed sealed quiet ring, sealed quiet ring and rotating ring head constitute mechanical seal friction pair.

Preferably, the rotating ring base is made of silicon carbide material.

Preferably, a groove is formed in the inner side of the movable ring base, a first rubber O-shaped ring is arranged at the groove, and the movable ring base is connected with the movable ring head in a sealing mode through the first rubber O-shaped ring.

Preferably, the movable ring head is provided with a buckle, the spring pressing sheet is provided with a clamping groove, and the movable ring head and the spring pressing sheet are fixed through the buckle and the clamping groove.

Preferably, the static sealing ring is made of silicon carbide.

Preferably, a boss is arranged on the outer side of the sealing static ring, and a rubber O-shaped ring II is arranged at the boss.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses install on the chemical industry pump, through the gland of fastening pump, 5 springs that the overhead evenly arranged of rotating ring produce even compression volume, make the vice contact surface atress of friction even, and the wearing and tearing volume keeps unanimous to avoid taking place to grind inclined to one side phenomenon.

2. The utility model discloses a select to optimize the vice material of mechanical seal friction, the material of selecting the movable ring head is carbide, and the material of sealed quiet ring is carborundum, and the friction of constituteing by these two kinds of materials is vice, and it is minimum at operation in-process wearing and tearing consumption, and it is fast to have solved mechanical seal wearing and tearing, and life is short's problem is improved mechanical seal life by a wide margin, has reduced the cost of maintenance of enterprise.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

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

FIG. 2 is a schematic structural view of a seal rotating ring assembly;

FIG. 3 is a schematic structural view of a rotating ring base;

FIG. 4 is a cross-sectional view of the moving ring head;

FIG. 5 is a front view of the moving ring head;

FIG. 6 is a schematic view of the structure of a spring wafer;

fig. 7 is a schematic structural view of a sealing stationary ring.

Labeled as: 1-hollow shaft, 2-sealing movable ring component, 21-movable ring base, 211-groove, 212-rubber O-shaped ring I, 22-movable ring head, 221-counter bore, 222-spring, 223-spring pressing sheet, 224-clamping groove, 225-buckle, 3-sealing static ring, 31-boss and 32-rubber O-shaped ring II.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 7, the embodiment provides a mechanical seal structure, including installing sealed rotating ring subassembly 2 and sealed stationary ring 3 on hollow shaft 1, sealed rotating ring subassembly 2 comprises rotating ring base 21 and rotating ring head 22, rotating ring base 21 is silicon carbide material, recess 211 is seted up to rotating ring base 21 inboard, recess 211 department sets up rubber O-ring 212, through rubber O-ring 212 with rotating ring base 21 and rotating ring head 22 sealing connection.

One side of the movable ring head 22 close to the movable ring base 21 is uniformly provided with 5 counter bores 221, springs 222 are placed in the counter bores 221, spring pressing pieces 223 are installed on the outer sides of the springs 222, the movable ring head 22 is provided with a buckle 225, the springs 222 are provided with clamping grooves 224, and the movable ring head 22 and the spring pressing pieces 223 are fixedly connected through the buckle 225 and the clamping grooves 224.

Move the ring head 22 and keep away from one side of rotating ring base 21 and install sealed quiet ring 3, sealed quiet ring 3 constitutes mechanical seal friction pair with moving ring head 22, sealed quiet ring 3 is the carborundum material, the 3 outsides of sealed quiet ring are equipped with boss 31, boss 31 department sets up two 32 of rubber O type circle.

The mechanical sealing structure is arranged on a chemical pump, 5 springs 222 on the movable ring head 22 generate uniform compression quantity by fastening a gland of the pump, so that the contact surface of a friction pair is uniformly stressed, the abrasion quantity is kept consistent, and the abrasion deviation phenomenon cannot occur; because the movable ring head 22 is made of hard alloy, the sealing static ring 3 is made of silicon carbide, and the friction pair composed of the two materials has extremely low abrasion consumption in the operation process, the purpose of prolonging the service life of the mechanical seal is finally achieved, and the maintenance cost of enterprises is reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A mechanical sealing structure is characterized by comprising a sealing movable ring component (2) and a sealing static ring (3) which are arranged on a hollow shaft (1), wherein the sealing movable ring component (2) consists of a movable ring base (21) and a movable ring head (22), one side, close to the movable ring base (21), of the movable ring head (22) is provided with a counter bore (221), a spring (222) is placed in the counter bore (221), the outer side of the spring (222) is provided with a spring pressing sheet (223), one side, far away from the movable ring base (21), of the movable ring head (22) is provided with the sealing static ring (3), the sealing static ring (3) and the movable ring head (22) form a mechanical sealing friction pair, the movable ring head (22) is provided with a buckle (225), the spring (222) pressing sheet is provided with a clamping groove (224), and the movable ring head (22) and the spring pressing sheet (223) are fixed through the buckle (225) and the clamping groove (224), the sealing static ring (3) is made of silicon carbide, and the moving ring head (22) is made of hard alloy.

2. A mechanical seal according to claim 1, wherein the rotating ring base (21) is a silicon carbide material.

3. The mechanical sealing structure is characterized in that a groove (211) is formed in the inner side of the moving ring base (21), a rubber O-ring I (212) is arranged at the position of the groove (211), and the moving ring base (21) is connected with the moving ring head (22) in a sealing mode through the rubber O-ring I (212).

4. A mechanical sealing structure according to claim 1, characterized in that a boss (31) is provided outside the static sealing ring (3), and a second rubber O-ring (32) is provided at the boss (31).