CN112178196A - Container radial double-end-face split mechanical seal - Google Patents

Container radial double-end-face split mechanical seal Download PDF

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Publication number
CN112178196A
CN112178196A CN202011072815.2A CN202011072815A CN112178196A CN 112178196 A CN112178196 A CN 112178196A CN 202011072815 A CN202011072815 A CN 202011072815A CN 112178196 A CN112178196 A CN 112178196A
Authority
CN
China
Prior art keywords
ring
gland
split
shaft sleeve
mechanical seal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011072815.2A
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Chinese (zh)
Inventor
瞿国平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parbat Machinery Suzhou Co Ltd
Original Assignee
Parbat Machinery Suzhou Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Parbat Machinery Suzhou Co Ltd filed Critical Parbat Machinery Suzhou Co Ltd
Priority to CN202011072815.2A priority Critical patent/CN112178196A/en
Publication of CN112178196A publication Critical patent/CN112178196A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3436—Pressing means
    • F16J15/3452—Pressing means the pressing force resulting from the action of a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3436—Pressing means
    • F16J15/3448—Pressing means the pressing force resulting from fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3464—Mounting of the seal
    • F16J15/348—Pre-assembled seals, e.g. cartridge seals
    • F16J15/3484—Tandem seals

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Sealing (AREA)

Abstract

The invention discloses a container radial double-end-surface split mechanical seal, which comprises: the center is to the axle sleeve that sets up of opening, the gland, the rotating ring, outer quiet ring and interior quiet ring, the axle sleeve is to the piece amalgamation suit of opening on the main shaft, be provided with the rotating ring annular in the bottom of axle sleeve, the rotating ring is to the piece amalgamation back-fixing in the rotating ring annular, outer quiet ring is to the piece amalgamation back and is connected with the rotating ring sealing, also with the rotating ring sealing after the piece amalgamation of interior quiet ring, be provided with the outer throw-out collar at the top of outer quiet ring, be provided with the inner throw-out collar at the top of inner quiet ring, the suit is on the axle sleeve after the gland is to the piece amalgamation of opening, leave the free gap between gland and outer throw-out collar, the inner throw-out collar, be provided with a plurality of driving medium and a. The invention has strong sealing effect and is convenient to disassemble and assemble.

Description

Container radial double-end-face split mechanical seal
Technical Field
The invention relates to a mechanical seal, in particular to a container radial double-end-face split mechanical seal.
Background
The main parts of the traditional mechanical seal, such as a movable ring, a static ring, a gland and a shaft sleeve, are closed circular ring bodies. In the installation, just can install other parts on the main shaft after installing mechanical seal cover on the main shaft earlier, and demolish the in-process, need remove other parts on the main shaft earlier and just can install mechanical seal cover on the main shaft, this kind of dismouting work is not only the process loaded down with trivial details, has reduced production efficiency, needs the staff to have high precision installation ability moreover.
Disclosure of Invention
The invention aims to provide a container radial double-end-face split mechanical seal which is convenient to disassemble and assemble and high in sealing performance.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: radial bi-polar face subdivision formula mechanical seal of collection dress includes: the shaft sleeve, the gland, the movable ring, the outer stationary ring and the inner stationary ring are all center split pieces, the shaft sleeve split pieces are assembled and sleeved on the main shaft, a first sealing ring is arranged between the shaft sleeve and the main shaft, a moving ring groove is arranged at the bottom of the shaft sleeve, the moving ring split piece is fixed in the moving ring groove after being spliced, a second sealing ring is arranged between the outer side wall of the movable ring and the inner side wall of the movable ring groove, the outer static ring split piece is connected with the movable ring in a sealing way after being spliced, the inner static ring split piece is also connected with the movable ring in a sealing way after being spliced, the top of the outer stationary ring is provided with an outer push ring, the top of the inner stationary ring is provided with an inner push ring, the gland split piece is sleeved on the shaft sleeve after being spliced, and movable gaps are left among the gland, the outer push ring and the inner push ring, a plurality of transmission parts and a plurality of elastic parts are arranged between the gland and the outer push ring and the inner push ring, and third sealing rings are arranged between the gland and the outer side walls of the outer static ring and the inner static ring.
Further, in the container radial two-end-face split mechanical seal, the outward pushing ring and the inward pushing ring are both center split pieces, and the outward pushing ring and the inward pushing ring have the same structure, and the outward pushing ring is taken as an example: a plurality of step through holes and spring holes are uniformly arranged in the outer pushing ring at intervals along the circumference, a transmission screw penetrates through each step through hole to serve as a transmission part, the transmission screw upwards extends out of the outer pushing ring and then is in threaded connection with the pressing cover, a spring serving as an elastic part is placed in each spring hole, and the top end of the spring abuts against the pressing cover.
Further, the radial two terminal surfaces subdivision formula mechanical seal of aforesaid collection dress, wherein, the connection structure between rotating ring and the rotating ring annular is: the bottom wall of the rotating ring groove is provided with a plurality of cylindrical pins at uniform intervals along the circumference, the bottom of the rotating ring is provided with a plurality of cylindrical holes at uniform intervals along the circumference, and after the rotating ring is placed in the rotating ring groove, each cylindrical pin in the rotating ring groove extends into each cylindrical hole in the rotating ring respectively.
Further, the radial double-end-face split mechanical seal of the container is characterized in that a plurality of T-shaped limiting blocks are uniformly arranged between the gland and the shaft sleeve at intervals along the circumference, screws are arranged at the upper sections of the T-shaped limiting blocks, the screws penetrate through the shaft sleeve and then are connected with the main shaft, and the lower sections of the T-shaped limiting blocks are fixedly connected with the gland through the screws.
Further, the radial two terminal surfaces subdivision formula mechanical seal of aforementioned collection dress, wherein, be provided with a plurality of L shape stoppers along the even interval of circumference on the shaft shoulder of gland, be provided with the screw on L shape stopper, the screw passes and links to each other with the axle sleeve behind the gland.
Further, the container radial double-end-face split mechanical seal is characterized in that a gland gasket is arranged between the gland split pieces, a corresponding first positioning pin and a corresponding first positioning hole are arranged between the gland split pieces, and the gland split pieces are connected in a tightening mode through screws.
Further, in the container radial double-end-face split mechanical seal, a flat gasket is arranged on the bottom wall of the gland.
Further, the radial double-end-face split mechanical seal for packaging is characterized in that a shaft sleeve gasket is arranged between the shaft sleeve split pieces, a second positioning pin and a second positioning hole which correspond to each other are arranged between the shaft sleeve split pieces, and the shaft sleeve split pieces are connected in a tightening mode through screws.
The invention has the advantages that: because the shaft sleeve, the gland, the movable ring, the outer static ring and the inner static ring all adopt split structures, when the mechanical seal is installed and replaced, the mechanical seal does not need to be sleeved in from the end part of the main shaft, other parts on the main shaft do not need to be detached, the workload is reduced, and the working efficiency is improved. When the split mechanical seal bears the pressure of the medium, the contact pressure between the movable ring and the outer static ring and between the movable ring and the inner static ring is increased along with the increase of the pressure of the medium to be sealed, and the resistance of the medium to be sealed flowing out of the sealing surface is improved. And the double-static-ring structure of the outer static ring and the inner static ring is connected with the dynamic ring in a sealing way, so that the sealing effect on the medium is further improved.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a container radial double-end-face split mechanical seal according to the present invention.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the preferred embodiments.
As shown in fig. 1, the container radial double-end-surface split mechanical seal according to the present invention includes: axle sleeve 1, gland 2, rotating ring 3, outer quiet ring 4 and interior quiet ring 5, axle sleeve 1, gland 2, rotating ring 3, outer quiet ring 4 and interior quiet ring 5 are the center and run from opposite directions the piece, axle sleeve 1 run from opposite directions a piece amalgamation suit on main shaft 10, be provided with first sealing washer 11 between axle sleeve 1 and main shaft 10, be provided with rotating ring annular 12 in axle sleeve 1's bottom, rotating ring 3 to opening a piece amalgamation after-fixing in rotating ring annular 12, its concrete connection structure is: a plurality of cylindrical pins 13 are uniformly arranged on the bottom wall of the moving ring groove 12 at intervals along the circumference, a plurality of cylindrical holes 31 are uniformly arranged at the bottom of the moving ring 3 at intervals along the circumference, and after the moving ring 3 is placed in the moving ring groove 12, the cylindrical pins 13 in the moving ring groove 12 respectively extend into the cylindrical holes 31 in the moving ring 3. Be provided with second sealing washer 32 between the lateral wall of rotating ring 3 and the inside wall of rotating ring annular 12, outer quiet ring 4 split back with rotating ring 3 sealing connection, also with rotating ring 3 sealing connection after the split of interior quiet ring 5, be provided with outer throw-out collar 6 at outer quiet ring 4's top, be provided with inner throw-out collar 7 at inner quiet ring 5's top, the suit is on axle sleeve 1 after the split of gland 2, leaves the movable clearance between gland 2 and outer throw-out collar 6, the inner throw-out collar 7, outer throw-out collar 6 is the center split with inner throw-out collar 7, and outer throw-out collar 6 is the same with inner throw-out collar 7's structure, takes outer throw-out collar 6 as an example: a plurality of step through holes and spring holes are uniformly arranged in the outer pushing ring 6 at intervals along the circumference, a transmission screw 61 is arranged in each step through hole in a penetrating mode and serves as a transmission piece, the transmission screw 61 extends upwards out of the outer pushing ring 6 and then is in threaded connection with the gland 2, a spring 62 is placed in each spring hole and serves as an elastic piece, and the top end of the spring 62 abuts against the gland 2. And third sealing rings 21 are arranged between the gland 2 and the outer side walls of the outer static ring 4 and the inner static ring 5.
In this embodiment, a plurality of T-shaped limit blocks 8 are uniformly arranged between the gland 2 and the shaft sleeve 1 at intervals along the circumference, screws are arranged at the upper sections of the T-shaped limit blocks 8, the screws penetrate through the shaft sleeve 1 and then are connected with the main shaft 10, and the lower sections of the T-shaped limit blocks 78 are fixedly connected with the gland 2 through the screws. A plurality of L-shaped limiting blocks 9 are uniformly arranged on the shaft shoulder of the gland 2 at intervals along the circumference, screws are arranged on the L-shaped limiting blocks 9, and the screws penetrate through the gland 2 and then are connected with the shaft sleeve 1.
In this embodiment, a first positioning pin 22 and a first positioning hole 23 are correspondingly arranged between the split parts of the gland 2, the split parts of the gland 2 are tightened and connected by screws, a gland gasket 24 is arranged between the split parts of the gland 2, and a flat gasket 25 is arranged on the bottom wall of the gland 2.
In this embodiment, a second positioning pin 14 and a second positioning hole 15 are correspondingly disposed between the split parts of the shaft sleeve 1, the split parts of the shaft sleeve 2 are tightened and connected by screws, and a shaft sleeve gasket 16 is disposed between the split parts of the shaft sleeve 1.
The invention has the advantages that: because the shaft sleeve, the gland, the movable ring, the outer static ring and the inner static ring all adopt split structures, when the mechanical seal is installed and replaced, the mechanical seal does not need to be sleeved in from the end part of the main shaft, other parts on the main shaft do not need to be detached, the workload is reduced, and the working efficiency is improved. When the split mechanical seal bears the pressure of the medium, the contact pressure between the movable ring and the outer static ring and between the movable ring and the inner static ring is increased along with the increase of the pressure of the medium to be sealed, and the resistance of the medium to be sealed flowing out of the sealing surface is improved. And the double-static-ring structure of the outer static ring and the inner static ring is connected with the dynamic ring in a sealing way, so that the sealing effect on the medium is further improved.

Claims (8)

1. Radial bi-polar face subdivision formula mechanical seal of collection dress, its characterized in that: the method comprises the following steps: the shaft sleeve, the gland, the movable ring, the outer stationary ring and the inner stationary ring are all center split pieces, the shaft sleeve split pieces are assembled and sleeved on the main shaft, a first sealing ring is arranged between the shaft sleeve and the main shaft, a moving ring groove is arranged at the bottom of the shaft sleeve, the moving ring split piece is fixed in the moving ring groove after being spliced, a second sealing ring is arranged between the outer side wall of the movable ring and the inner side wall of the movable ring groove, the outer static ring split piece is connected with the movable ring in a sealing way after being spliced, the inner static ring split piece is also connected with the movable ring in a sealing way after being spliced, the top of the outer stationary ring is provided with an outer push ring, the top of the inner stationary ring is provided with an inner push ring, the gland split piece is sleeved on the shaft sleeve after being spliced, and movable gaps are left among the gland, the outer push ring and the inner push ring, a plurality of transmission parts and a plurality of elastic parts are arranged between the gland and the outer push ring and the inner push ring, and third sealing rings are arranged between the gland and the outer side walls of the outer static ring and the inner static ring.
2. The integrated radial double-ended split mechanical seal of claim 1, wherein: the outer push ring and the inner push ring are both center split pieces, and the outer push ring and the inner push ring have the same structure, and the outer push ring is taken as an example: a plurality of step through holes and spring holes are uniformly arranged in the outer pushing ring at intervals along the circumference, a transmission screw penetrates through each step through hole to serve as a transmission part, the transmission screw upwards extends out of the outer pushing ring and then is in threaded connection with the pressing cover, a spring serving as an elastic part is placed in each spring hole, and the top end of the spring abuts against the pressing cover.
3. An integral radial double end-face split mechanical seal according to claim 1 or 2, wherein: the connection structure between the rotating ring and the rotating ring groove is as follows: the bottom wall of the rotating ring groove is provided with a plurality of cylindrical pins at uniform intervals along the circumference, the bottom of the rotating ring is provided with a plurality of cylindrical holes at uniform intervals along the circumference, and after the rotating ring is placed in the rotating ring groove, each cylindrical pin in the rotating ring groove extends into each cylindrical hole in the rotating ring respectively.
4. An integral radial double end-face split mechanical seal according to claim 1 or 2, wherein: a plurality of T-shaped limiting blocks are uniformly arranged between the gland and the shaft sleeve at intervals along the circumference, screws are arranged at the upper sections of the T-shaped limiting blocks, the screws penetrate through the shaft sleeve and then are connected with the main shaft, and the lower sections of the T-shaped limiting blocks are fixedly connected with the gland through the screws.
5. The integrated radial double-ended split mechanical seal of claim 4, wherein: a plurality of L-shaped limiting blocks are uniformly arranged on the shaft shoulder of the gland at intervals along the circumference, screws are arranged on the L-shaped limiting blocks, and the screws penetrate through the gland and then are connected with the shaft sleeve.
6. An integral radial double end-face split mechanical seal according to claim 1 or 2, wherein: a gland gasket is arranged between the gland split parts, a corresponding first positioning pin and a first positioning hole are arranged between the gland split parts, and the gland split parts are connected in a tightening mode through screws.
7. An integral radial double end-face split mechanical seal according to claim 1 or 2, wherein: a flat gasket is arranged on the bottom wall of the gland.
8. An integral radial double end-face split mechanical seal according to claim 1 or 2, wherein: and a shaft sleeve gasket is arranged between the shaft sleeve split pieces, a second positioning pin and a second positioning hole which correspond to each other are arranged between the shaft sleeve split pieces, and the shaft sleeve split pieces are tightened and connected through screws.
CN202011072815.2A 2020-10-09 2020-10-09 Container radial double-end-face split mechanical seal Pending CN112178196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011072815.2A CN112178196A (en) 2020-10-09 2020-10-09 Container radial double-end-face split mechanical seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011072815.2A CN112178196A (en) 2020-10-09 2020-10-09 Container radial double-end-face split mechanical seal

Publications (1)

Publication Number Publication Date
CN112178196A true CN112178196A (en) 2021-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011072815.2A Pending CN112178196A (en) 2020-10-09 2020-10-09 Container radial double-end-face split mechanical seal

Country Status (1)

Country Link
CN (1) CN112178196A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113494610A (en) * 2021-07-08 2021-10-12 西华大学 Floating ring structure with damping support and mechanical sealing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113494610A (en) * 2021-07-08 2021-10-12 西华大学 Floating ring structure with damping support and mechanical sealing device
CN113494610B (en) * 2021-07-08 2023-06-27 西华大学 Floating ring structure with damping support and mechanical sealing device

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