CN210265847U

CN210265847U - Corrosion-resistant mechanical sealing device

Info

Publication number: CN210265847U
Application number: CN201921153888.7U
Authority: CN
Inventors: 袁军成
Original assignee: Lianshui Chuangmi Machinery Manufacturing Co ltd
Current assignee: Lianshui Chuangmi Machinery Manufacturing Co ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-04-07
Anticipated expiration: 2029-07-22

Abstract

The utility model relates to a sealing device technical field discloses a corrosion-resistant mechanical seal device, including the axis of rotation, axis of rotation both ends mid-mounting has the fixing base, and the fixing base inboard is fixed with a rotating cylinder, the axis of rotation mid-mounting has the rolling disc, and the interior sealing washer is installed respectively in the axis of rotation outside at rolling disc both ends, and sealed dish is installed in the interior sealing washer outside, and the axis of rotation mid-mounting in the sealed dish outside has the bearing, and the sealing ring is installed in the bearing outside, and the swivel becket is installed in the sealing ring outside, installs the. The utility model discloses, rational in infrastructure, the modern design is through setting up the rolling disc at the axis of rotation middle part to through the effect of sealed dish, sealing ring and rolling disc, realized that the high efficiency to the axis of rotation is sealed, it is sealed effectual, and whole assembly also easily operates, and the practicality is strong, and the reliability is high.

Description

Corrosion-resistant mechanical sealing device

Technical Field

The utility model relates to a sealing device technical field specifically is a corrosion-resistant mechanical seal device.

Background

Mechanical seals, also known as face seals, are used mainly for sealing rotating shafts of pumps, reactors, compressors, hydraulic drives and other similar devices, and have various forms, including single-face seals and double-face seals, depending on the number of friction pairs.

When the mechanical seal is applied to a working medium environment with strong corrosive fluid, crystal precipitation and flammable and explosive potential safety hazards of leaked substances, the corrosion resistance of the mechanical seal is particularly concerned, the sealing performance of the mechanical seal is ensured, and the mechanical seal is prevented from being damaged

Leakage and safety accidents occur.

In the mechanical seal in the prior art, the structure is usually too simple, the sealing performance is insufficient, and in the existing mechanical seal, crystallization is easy to occur at the seal grinding surface to influence the sealing performance. Chinese patent (publication number: CN 208935391U) discloses a corrosion-resistant mechanical sealing device, which comprises a static ring and a dynamic ring component which are sequentially sleeved on a pump shaft, wherein the end surface of one side of the static ring is in surface contact with the end surface of the dynamic ring component to form a sealing surface, and the dynamic ring component comprises a dynamic ring, a corrugated pipe, an outer sleeve, a spring seat and a plurality of springs; the movable ring is assembled at the end part of the corrugated pipe close to one side of the stationary ring, and the outer sleeve is sleeved outside the corrugated pipe.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a corrosion-resistant mechanical seal device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a corrosion-resistant mechanical seal device, includes the axis of rotation, axis of rotation both ends mid-mounting has the fixing base, and the fixing base inboard is fixed with a rotating cylinder, axis of rotation mid-mounting has the rolling disc, and the inner seal circle is installed respectively in the axis of rotation outside at rolling disc both ends, and sealed dish is installed in the inner seal outside, and the axis of rotation mid-mounting in the sealed dish outside has the bearing, and the sealing ring is installed in the bearing outside, and the swivel becket installs in the sealing ring outside, installs.

As a further aspect of the present invention: an outer sealing ring is arranged between the fixed seat and the rotating shaft.

As a further aspect of the present invention: and the middle part of the outer side of the rotating ring is provided with a rolling groove matched with the rolling balls.

As a further aspect of the present invention: and the inner side of the sealing ring is provided with an internal thread hole matched with the rotating disc.

As a further aspect of the present invention: and a large spring and a small spring are arranged between the fixed seat and the sealing ring.

As a further aspect of the present invention: and the two ends of the rotating shaft are connected with fixed seats through keys.

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

the corrosion-resistant mechanical sealing device is reasonable in structure, novel in design, the rotating disc is arranged in the middle of the rotating shaft, the rotating shaft is efficiently sealed under the action of the sealing disc, the sealing ring and the rotating disc, the sealing effect is good, the whole assembly is easy to operate, the practicability is high, and the reliability is high.

Drawings

Fig. 1 is a schematic structural view of a corrosion-resistant mechanical sealing device.

Fig. 2 is a schematic structural view of a rotating shaft in a corrosion-resistant mechanical sealing device.

Fig. 3 is a schematic structural view of a rotating ring in a corrosion-resistant mechanical seal device.

In the figure: 1-rotating shaft, 2-rotating cylinder, 3-fixing seat, 4-rotating ring, 5-outer sealing ring, 6-ball, 7-big spring, 8-small spring, 9-bearing, 10-sealing ring, 11-rotating disk, 12-sealing disk, 13-key, 14-internal thread hole, 15-inner sealing ring and 16-rolling groove.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

Referring to fig. 1 to 3, in the embodiment of the present invention, a corrosion-resistant mechanical sealing device includes a rotating shaft 1, two ends of the rotating shaft 1 are connected to a fixing seat 3 through a key 13, the fixing seat 3 is installed and fixed on the rotating shaft 1 through the key 13, the fixing seat 3 is installed in the middle of the two ends of the rotating shaft 1, an outer sealing ring 5 is installed between the fixing seat 3 and a rotating ring 4 for sealing the rotating rod 4 to a certain extent during rotation, a rotating cylinder 2 is fixed on the inner side of the fixing seat 3, a rotating disc 11 is installed in the middle of the rotating shaft 1, inner sealing rings 15 are installed on the outer sides of the rotating shafts 1 at two ends of the rotating disc 11 respectively, a sealing disc 12 is installed on the outer side of the inner sealing ring 15, a bearing 9 is installed in the middle of the rotating shaft 1 on the outer side of the sealing disc 12, thereby ensured to assemble and fixed between rolling disc 11 and the sealing ring 10, swivel becket 4 is installed to the sealing ring 10 outside, installs ball 6 between swivel becket 4 both ends and the fixing base 3, has further guaranteed the smoothness when swivel becket 4 rotates through setting up ball 6, swivel becket 4 outside middle part is equipped with the rolling groove 16 of mutually supporting with ball 6.

Example 2

The utility model discloses an in another embodiment, this embodiment lies in with the difference of above-mentioned embodiment, be equipped with big spring 7 and little spring 8 between fixing base 3 and the sealing ring 10, make the axial direction of sealing ring 10 can carry out the sealed compressing tightly of certain degree through setting up big spring 7 and little spring 8, further guarantee sealed effect.

The utility model discloses, rational in infrastructure, the modern design is through setting up the rolling disc at the axis of rotation middle part to through the effect of sealed dish, sealing ring and rolling disc, realized that the high efficiency to the axis of rotation is sealed, it is sealed effectual, and whole assembly also easily operates, and the practicality is strong, and the reliability is high.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a corrosion-resistant mechanical seal device, includes axis of rotation (1), axis of rotation (1) both ends mid-mounting has fixing base (3), and fixing base (3) inboard is fixed with a rotating cylinder (2), a serial communication port, axis of rotation (1) mid-mounting has rolling disc (11), and interior sealing washer (15) are installed respectively in axis of rotation (1) the outside at rolling disc (11) both ends, and sealed dish (12) are installed in interior sealing washer (15) outside, and axis of rotation (1) the mid-mounting in sealed dish (12) outside has bearing (9), and sealing ring (10) are installed in bearing (9) the outside, and swivel ring (4) are installed in sealing ring (10) the outside, install ball (6) between swivel ring (4) both ends.

2. A corrosion resistant mechanical seal according to claim 1 wherein an outer sealing ring (5) is mounted between the holder (3) and the rotating ring (4).

3. A corrosion resistant mechanical seal according to claim 1 wherein the outer central portion of the rotating ring (4) is provided with rolling grooves (16) for cooperation with the balls (6).

4. A corrosion resistant mechanical seal according to claim 2 wherein said sealing ring (10) is internally threaded (14) to interact with a rotatable disc (11).

5. A corrosion resistant mechanical seal according to claim 1 or 4 wherein a large spring (7) and a small spring (8) are provided between the holder (3) and the seal ring (10).

6. A corrosion resistant mechanical seal according to claim 5 wherein the rotating shaft (1) is connected at both ends to the mounting (3) by means of keys (13).