CN209469799U - A kind of mechanically-sealing apparatus of rotary shaft - Google Patents
A kind of mechanically-sealing apparatus of rotary shaft Download PDFInfo
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- CN209469799U CN209469799U CN201920006467.5U CN201920006467U CN209469799U CN 209469799 U CN209469799 U CN 209469799U CN 201920006467 U CN201920006467 U CN 201920006467U CN 209469799 U CN209469799 U CN 209469799U
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- rotary shaft
- spring
- sealing apparatus
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Abstract
The utility model is a kind of mechanically-sealing apparatus of rotary shaft, specifically a kind of axially compact type Simple Mechanical Seals.Including the subcomponent, auxiliary sealing member, structural member of rubbing.The utility model compensation sealing ring uses arranged stationary mode, and friction is secondary to use insert structure, and auxiliary seal ring and spring take parallel arrangement, reduce axial arrangement space.Dynamic friction pair uses insert structure, and rotating seat is integrated with retainer design, is cooperated in interior hole machined reverse thread with sleeve thread according to pump rotation direction.Excircle machining dismounting groove, for mounting and dismounting rotating ring.Screw thread and axle sleeve are fastened, transmitting torque and positioning action are played, decrement needed for seal operation is also determined together.
Description
Technical field
The utility model belongs to technical field of mechanical, is related to a kind of mechanically-sealing apparatus of rotary shaft.
Background technique
When mechanical seal rinsing conceptual design is PLAN62, the sealing for chilling liquid is routinely using nockbush.
Nockbush has entirety and two kinds of patterns of valve is divided to be designed to reduce leakage rate to radial clearance and axial end face gap
Control.Sleeve outer circle roughness allows, and outside framework oil seal can also be used, sealing effect is better than nockbush.But two kinds of patterns
Sealing, service life are all shorter.
Utility model content
Utility model aims to solve environmental requirement is not met using nockbush and outside framework oil seal leakage, use
Standard size mechanical seal axial direction insufficient space problem.
The purpose of this utility model can be achieved through the following technical solutions: a kind of mechanically-sealing apparatus of rotary shaft, packet
Friction subcomponent, auxiliary sealing member, structural member are included, the friction subcomponent includes moving ring assembly, static components, and the auxiliary is close
Sealing selects O-ring；The structural member includes spring, gland；The subcomponent that rubs uses insert structure；Auxiliary sealing member and spring
It is arranged in parallel in gland, moving ring assembly includes rotating seat, and static components include retainer；According to the pump shaft of installation water-tight equipment
Rotation direction, in the interior hole machined reverse thread of rotating seat, when guaranteeing pump shaft rotation, screw thread is in and screws state, with pump shaft axle sleeve spiral shell
Line cooperation；Rotating seat Excircle machining dismounting groove, for mounting and dismounting rotating ring.
The static components are connect with spring, are equipped with the friction subcomponent of spring using arranged stationary mode.
The rotating seat is integrated with retainer design.
The rotating seat and pump shaft axle sleeve are with sharing screw thread, using screw-driven torque and positioning, after threaded engagement, and limit
Shoulder contact, limitation rotating seat and axle sleeve generate displacement, then apply torque, are no longer subjected to displacement, that is, realize transmitting torque, do not produce
Raw displacement, to position.
The moment of resistance that resistance of medium when the torque is the frictional force and rotation of the secondary relative rotation of friction generates.
The utility model has the beneficial effects that
The utility model makes mechanical seal in small axial direction by effectively reducing the arrangement space of the centerline direction of pump shaft
Space operating condition is applied.
The utility model uses mechanical seal, and service life is longer compared with nockbush.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the schematic diagram of the section structure of the utility model；
Fig. 2 is the structural schematic diagram of the utility model moving ring assembly.
Specific embodiment
Fig. 1 combination following examples are please referred to be described in detail:
A kind of mechanically-sealing apparatus of rotary shaft, including friction subcomponent, auxiliary sealing member, structural member, the friction are secondary
Component includes moving ring assembly 2, static components 3, and the auxiliary sealing member selects O-ring 4；The structural member includes spring 5, gland
6；The subcomponent that rubs uses insert structure；Auxiliary sealing member and spring are arranged in parallel in gland, and moving ring assembly 2 includes rotating ring
Seat, static components 3 include retainer；According to the pump shaft rotation direction of installation water-tight equipment, in the interior hole machined reverse thread of rotating seat
21, when guaranteeing pump shaft rotation, screw thread is in and screws state, cooperates with pump shaft sleeve thread；Rotating seat Excircle machining dismounting groove is used
In installation and removal rotating ring.
The static components 3 are connect with spring 5, are equipped with the friction subcomponent of spring 5 using arranged stationary mode.
The rotating seat is integrated with retainer design.
The rotating seat and pump shaft axle sleeve are with sharing screw thread, using screw-driven torque and positioning, after threaded engagement, and limit
Shoulder contact, limitation rotating seat and axle sleeve generate displacement, then apply torque, are no longer subjected to displacement, that is, realize transmitting torque, do not produce
Raw displacement, to position.
The moment of resistance that resistance of medium when the torque is the frictional force and rotation of the secondary relative rotation of friction generates.
The utility model becomes one with primary seal, in use, quenching medium should be opened first, it is close that process flow meets master
Sealing operating condition can running device.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from reality
With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (3)
1. a kind of mechanically-sealing apparatus of rotary shaft, which is characterized in that including the subcomponent, auxiliary sealing member, structural member of rubbing, institute
Stating friction subcomponent includes moving ring assembly, static components, and the auxiliary sealing member selects O-ring；The structural member include spring,
Gland；The subcomponent that rubs uses insert structure；Auxiliary sealing member and spring are arranged in parallel in gland, and moving ring assembly includes rotating ring
Seat, static components include retainer；According to the pump shaft rotation direction of installation water-tight equipment, in the interior hole machined reverse thread of rotating seat,
When guaranteeing pump shaft rotation, screw thread is in and screws state, cooperates with pump shaft sleeve thread；Rotating seat Excircle machining dismounting groove, is used for
Mount and dismount rotating ring.
2. a kind of mechanically-sealing apparatus of rotary shaft according to claim 1, which is characterized in that the static components and bullet
Spring connection is equipped with the friction subcomponent of spring using arranged stationary mode.
3. a kind of mechanically-sealing apparatus of rotary shaft according to claim 1, which is characterized in that the rotating seat and transmission
Seat design is integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006467.5U CN209469799U (en) | 2019-01-03 | 2019-01-03 | A kind of mechanically-sealing apparatus of rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006467.5U CN209469799U (en) | 2019-01-03 | 2019-01-03 | A kind of mechanically-sealing apparatus of rotary shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209469799U true CN209469799U (en) | 2019-10-08 |
Family
ID=68091256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920006467.5U Active CN209469799U (en) | 2019-01-03 | 2019-01-03 | A kind of mechanically-sealing apparatus of rotary shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209469799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939738A (en) * | 2019-12-05 | 2020-03-31 | 中国航发四川燃气涡轮研究院 | Quick-release end face sealing device |
-
2019
- 2019-01-03 CN CN201920006467.5U patent/CN209469799U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939738A (en) * | 2019-12-05 | 2020-03-31 | 中国航发四川燃气涡轮研究院 | Quick-release end face sealing device |
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