CN213298824U

CN213298824U - Spring type mechanical seal for sink roll

Info

Publication number: CN213298824U
Application number: CN202021763873.5U
Authority: CN
Inventors: 马志阳
Original assignee: TIANJIN LIANQIANG MECHANICAL SEAL TECHNOLOGY CO LTD
Current assignee: TIANJIN LIANQIANG MECHANICAL SEAL TECHNOLOGY CO LTD
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-05-28
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a be used for sink roll spring mechanical seal, includes sealing mechanism, and sink roll passes through sealing mechanism to be fixed on the cell body, and sealing mechanism includes bottom plate, spacer ring, quiet ring and rotating ring, its characterized in that: the rotating ring and the static ring are coaxial mirror symmetry two on the sink roll, the right end face of the static ring is tightly attached to the left end face of the rotating ring, a rotating ring sleeve is arranged on one side of the rotating ring, a first hoop is mounted on the rotating ring sleeve, the rotating ring is arranged at one end of the rotating ring sleeve, a semicircular hoop is fixedly connected to the other end of the rotating ring sleeve, a positioning plate is fixedly connected to the static ring, and a clamp spring is arranged between the transmission sleeve and the static ring. The utility model discloses a static type structure of spring, the corrosivity of medium passivation liquid is big in the equipment, and the spring does not contact with the medium, has avoided the spring to be corroded by the medium, the utility model discloses increase a semicircle clamp at the rotating ring rear portion, after the machine seals the installation and finishes, with the semicircle clamp dress at the back of rotating ring cover, support like this and can effectively prevent the deformation after the rotating ring atress.

Description

Spring type mechanical seal for sink roll

Technical Field

The utility model relates to a mechanical seal equipment technical field especially relates to a be used for sink roll spring mechanical seal.

Background

At present, a mechanical seal mainly comprises two seal rings (a movable ring and a stationary ring) perpendicular to a shaft, wherein the rear end face of the movable ring is in contact with the front end face of the stationary ring, a seal face which keeps tight contact and slides relatively is formed under the action of fluid pressure or the elasticity of a compensation mechanism, and a device for preventing liquid leakage is formed under the matching of auxiliary seal.

The existing commonly used mechanical sealing structure of the sink roll in the steel mill at present mainly comprises: the mechanical seal structure is free of springs, spring force is provided by axial force generated by compression deformation of the corrugated pipe, the sinking roller spindle is allowed to have a certain swinging amount, and the corrugated pipe has certain following performance and can be overcome.

However, after the existing mechanical sealing structure of the sink roll is used for a period of time, customers generally reflect that the mechanical seal has no floatability and is fixed, and the main reason is that equipment medium passivation solution is accumulated in the corrugation of the rubber corrugated pipe and is solidified in the rubber corrugated pipe for a long time. In addition, the moving ring part is embedded in the rubber sleeve by silicon carbide, and the outer ring is locked by the fastening ring. The movable ring has a backward trend under the thrust of the stationary ring, but the rubber sleeve is too soft and is not enough to support, so that the movable ring surface is easy to be uneven when the movable ring runs.

There is therefore a need for a spring-type mechanical seal for a sink roll that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at providing a be used for sink roll spring mechanical seal changes rubber bellows into spring seal, prevents that the machine from being blocked and dies. A semicircular hoop is added behind the moving ring for supporting, so that the deformation of the moving ring surface is prevented.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the utility model provides a be used for sink roll spring mechanical seal, includes sealing mechanism, and sink roll passes through sealing mechanism to be fixed on the cell body, and sealing mechanism includes bottom plate, spacer ring, quiet ring and rotating ring, its characterized in that: the sink roll is characterized in that the movable ring and the static ring are coaxially and mirror-symmetrically arranged on the sink roll, the right end face of the static ring and the left end face of the movable ring are tightly attached to each other, a movable ring sleeve is arranged on one side of the movable ring, a first hoop is arranged on the movable ring sleeve, the movable ring is arranged at one end of the movable ring sleeve, a semicircular hoop is fixedly connected to the other end of the movable ring sleeve, a positioning plate is fixedly connected to the static ring, a snap spring is arranged between the transmission sleeve and the static ring, the bottom plate is arranged on one side of the positioning plate, the upper end bottom plate and the positioning plate are mutually fixed through a second screw, a transmission sleeve is fixedly connected to the inner side of the positioning plate, a gap is reserved between the transmission sleeve and the static ring, the lower end bottom plate and the transmission sleeve are mutually fixed through a first screw, the lower end of the bottom plate is provided with a spacing ring, the spacing ring and the bottom plate, a spring is arranged between the push ring and the spacing ring, one end of the spring acts on the spacing ring, and the other end of the spring acts on the push ring.

Furthermore, a sealing gasket is arranged at the joint between the transmission sleeve and the bottom plate, and the transmission sleeve and the bottom plate are mutually sealed through the sealing gasket.

Further, a second hoop is arranged between the sink roll and the movable ring sleeve, and the sink roll and the movable ring sleeve are fixed with each other through the second hoop.

Furthermore, an O-shaped ring is arranged between the static ring and the spacing ring, and the static ring and the spacing ring are sealed with each other through the O-shaped ring.

Furthermore, a bolt hole is formed in the semicircular hoop, and a third screw is assembled in the bolt hole.

Furthermore, the spacing ring, the movable ring and the static ring are all made of pressureless sintered silicon carbide.

The utility model has the advantages that: the utility model provides a spring type mechanical seal for a sink roll, which modifies the prior traditional mechanical seal structure of the sink roll and adopts a spring static structure; the medium passivation solution in the equipment has high corrosivity, the spring is not contacted with the medium, the spring is prevented from being corroded by the medium, the spring force is outside, the spring cannot be clamped by the medium, the spring force can be stably provided, and the machine seal cannot be clamped; the utility model discloses increase a semicircle clamp at the rotating ring rear portion, after the machine seals the installation and finishes, with the semicircle clamp dress at the back of rotating ring cover, support like this and can effectively prevent the deformation after the rotating ring atress.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Wherein:

1. a base plate; 2. A spacer ring; 3. A spring;

4. a push ring; 5. A stationary ring; 6. A moving ring;

7. a first hoop; 8. A movable ring sleeve; 9. A second hoop;

10. a first screw; 11. A transmission sleeve; 12. An O-shaped ring;

13. a gasket; 14. A clamp spring; 15. A second screw;

16. positioning a plate; 17. A third screw; 18. A semicircular hoop;

19. sink roll

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, 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.

In the description of the present invention, it should be noted that unless otherwise explicitly specified or limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and 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 in specific cases to those skilled in the art.

Example 1:

fig. 1 is the utility model discloses a schematic structure diagram, as shown in fig. 1 a be used for sink roll spring mechanical seal, including sealing mechanism, sink roll 19 passes through sealing mechanism to be fixed on the cell body, and sealing mechanism includes bottom plate 1, spacer ring 2, quiet ring 5 and rotating ring 6, its characterized in that: the sink roll comprises a rotating ring 6 and a stationary ring 5, wherein the rotating ring 6 and the stationary ring 5 are coaxially and mirror-symmetrically arranged on a sink roll 19, the right end surface of the stationary ring 5 is tightly attached to the left end surface of the rotating ring 6, a rotating ring sleeve 8 is arranged on one side of the rotating ring 6, a first hoop 7 is arranged on the rotating ring sleeve 8, the rotating ring 6 is arranged at one end of the rotating ring sleeve 8, a semicircular hoop 18 is fixedly connected to the other end of the rotating ring sleeve 8, a positioning plate 16 is fixedly connected to the stationary ring 5, a snap spring 14 is arranged between the transmission sleeve and the stationary ring 5, the bottom plate 1 is arranged on one side of the positioning plate 16, the upper bottom plate 1 and the positioning plate 16 are fixed to each other through a second screw 15, a transmission sleeve 11 is fixedly connected to the inner side of the positioning plate 16, a gap is reserved between the transmission sleeve 11 and the stationary ring 5, the lower bottom plate 1 and the transmission sleeve 11 are fixed to each other through a first, fixed connection each other between spacing ring 2 and bottom plate 1, the left end fixed connection of quiet ring 5 is provided with throw-out collar 4, is provided with spring 3 between throw-out collar 4 and spacing ring 2, and the one end of spring 3 is used in spacing ring 2, and the other end of spring 3 is used in throw-out collar 4, driving sleeve 11 with junction between bottom plate 1 is provided with sealed the pad 13, through sealed the pad 13 mutual sealing between driving sleeve 11 and the bottom plate 1, be provided with second staple bolt 9 between sink roll 19 and the movable ring cover 8, through second staple bolt 9 reciprocal anchorage between sink roll 19 and the movable ring cover 8, be provided with O type circle 12 between quiet ring 5 and the spacing ring 2, through O type circle 12 mutual sealing between quiet ring 5 and the spacing ring 2, the bolt hole has been seted up on semicircle clamp 18, is furnished with third screw 17 in the bolt hole, spacing ring 2 is equipped with third screw 17 in the spacing ring 2, The dynamic ring 6 and the static ring 5 are both made of pressureless sintered silicon carbide.

The utility model modifies the prior traditional mechanical sealing structure of the sink roll, and adopts a spring static structure; the medium passivation solution in the equipment has high corrosivity, and the spring is not contacted with the medium, so that the spring is prevented from being corroded by the medium. The spring force is outside, the spring cannot be clamped by a medium, the spring force can be stably provided, and the mechanical seal cannot be clamped; the spacing ring in the utility model adopts pressureless sintering silicon carbide, the moving ring and the static ring adopt antimony-impregnated graphite to pressureless sintering silicon carbide, the sealing gasket and the O-shaped ring both adopt chlorosulfonated chloroethylene, the sealing effect is good, and the objects contacting with the medium are all corrosion-resistant; the utility model discloses increase a semicircle clamp at the rotating ring rear portion, after the machine seals the installation and finishes, with the semicircle clamp dress at the back of rotating ring cover, support like this and can effectively prevent the deformation after the rotating ring atress.

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 the same; 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 depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a be used for sink roll spring mechanical seal, includes sealing mechanism, and sink roll passes through sealing mechanism to be fixed on the cell body, and sealing mechanism includes bottom plate, spacer ring, quiet ring and rotating ring, its characterized in that: the sink roll is characterized in that the movable ring and the static ring are coaxially and mirror-symmetrically arranged on the sink roll, the right end face of the static ring and the left end face of the movable ring are tightly attached to each other, a movable ring sleeve is arranged on one side of the movable ring, a first hoop is arranged on the movable ring sleeve, the movable ring is arranged at one end of the movable ring sleeve, a semicircular hoop is fixedly connected to the other end of the movable ring sleeve, a positioning plate is fixedly connected to the static ring, a snap spring is arranged between the transmission sleeve and the static ring, the bottom plate is arranged on one side of the positioning plate, the upper end bottom plate and the positioning plate are mutually fixed through a second screw, a transmission sleeve is fixedly connected to the inner side of the positioning plate, a gap is reserved between the transmission sleeve and the static ring, the lower end bottom plate and the transmission sleeve are mutually fixed through a first screw, the lower end of the bottom plate is provided with a spacing ring, the spacing ring and the bottom plate, a spring is arranged between the push ring and the spacing ring, one end of the spring acts on the spacing ring, and the other end of the spring acts on the push ring.

2. A roller spring type mechanical seal for a sink according to claim 1, wherein: the transmission sleeve is connected with the bottom plate through a sealing gasket, and the transmission sleeve and the bottom plate are sealed through the sealing gasket.

3. A roller spring type mechanical seal for a sink according to claim 1, wherein: and a second hoop is arranged between the sink roller and the movable ring sleeve, and the sink roller and the movable ring sleeve are fixed with each other through the second hoop.

4. A roller spring type mechanical seal for a sink according to claim 1, wherein: an O-shaped ring is arranged between the static ring and the spacing ring, and the static ring and the spacing ring are sealed with each other through the O-shaped ring.

5. A roller spring type mechanical seal for a sink according to claim 1, wherein: the semicircular hoop is provided with a bolt hole, and a third screw is assembled in the bolt hole.

6. A roller spring type mechanical seal for a sink according to claim 1, wherein: the spacing ring, the dynamic ring and the static ring are all made of pressureless sintered silicon carbide.